Solve the equation \[(3x+2)-5(6x-1)=2(x-8)-6(7x-4)\] .
Answer
672k+ views
Hint: First of all expand the given equation \[(3x+2)-5(6x-1)=2(x-8)-6(7x-4)\] . After expanding, make LHS of the equation in such a way that it only has terms of x. Similarly, we have to make RHS of the equation in such a way that it contains only constant terms. Now, solve it further.
Complete step-by-step answer:
According to the question, it is given that our equation is \[(3x+2)-5(6x-1)=2(x-8)-6(7x-4)\] ……………………..(1)
We can see that equation (1) is a linear equation in x where x is unknown. We have to find the value of x using the equation provided.
First of all, we have to simplify the equation \[(3x+2)-5(6x-1)=2(x-8)-6(7x-4)\] into a simpler form. To simplify, we have to expand it first.
Expanding equation (1), we get
\[(3x+2)-5(6x-1)=2(x-8)-6(7x-4)\]
\[\Rightarrow (3x+2)-30x+5=2x-16-42x+24)\]
\[\Rightarrow -27x+7=-40x+12\] ……………………..(2)
Now, we have to make LHS of equation (2) in such a way that it only has terms of x. Similarly, we have to make RHS of the equation in such a way that it contains only constant terms.
Shifting -40x of RHS to the LHS and +7 of LHS to RHS of the equation, we get
\[\Rightarrow -27x+7=-40x+12\]
\[\begin{align}
& \Rightarrow -27x+40x=12-7 \\
& \Rightarrow 13x=5 \\
\end{align}\]
Here, the above is in its simplest form and can be solved easily.
Now, dividing the above equation by 13 on both LHS and RHS, we get
\[\begin{align}
& \Rightarrow \dfrac{13x}{13}=\dfrac{5}{13} \\
& \Rightarrow x=\dfrac{5}{13} \\
\end{align}\]
Hence, the value of x is \[x=\dfrac{5}{13}\] .
Note: In this question, one can make a mistake in shifting +7 of LHS to the RHS and write +7 in RHS too, which is wrong. If we are moving some terms of LHS to RHS then its sign is changed and vice-versa. Here we are moving +7 of LHS to the RHS. So, we have to write -7 in the RHS of the equation. Similarly, we have to shift -40x of RHS to the LHS. So, we have to write +40x in the LHS of the equation.
Complete step-by-step answer:
According to the question, it is given that our equation is \[(3x+2)-5(6x-1)=2(x-8)-6(7x-4)\] ……………………..(1)
We can see that equation (1) is a linear equation in x where x is unknown. We have to find the value of x using the equation provided.
First of all, we have to simplify the equation \[(3x+2)-5(6x-1)=2(x-8)-6(7x-4)\] into a simpler form. To simplify, we have to expand it first.
Expanding equation (1), we get
\[(3x+2)-5(6x-1)=2(x-8)-6(7x-4)\]
\[\Rightarrow (3x+2)-30x+5=2x-16-42x+24)\]
\[\Rightarrow -27x+7=-40x+12\] ……………………..(2)
Now, we have to make LHS of equation (2) in such a way that it only has terms of x. Similarly, we have to make RHS of the equation in such a way that it contains only constant terms.
Shifting -40x of RHS to the LHS and +7 of LHS to RHS of the equation, we get
\[\Rightarrow -27x+7=-40x+12\]
\[\begin{align}
& \Rightarrow -27x+40x=12-7 \\
& \Rightarrow 13x=5 \\
\end{align}\]
Here, the above is in its simplest form and can be solved easily.
Now, dividing the above equation by 13 on both LHS and RHS, we get
\[\begin{align}
& \Rightarrow \dfrac{13x}{13}=\dfrac{5}{13} \\
& \Rightarrow x=\dfrac{5}{13} \\
\end{align}\]
Hence, the value of x is \[x=\dfrac{5}{13}\] .
Note: In this question, one can make a mistake in shifting +7 of LHS to the RHS and write +7 in RHS too, which is wrong. If we are moving some terms of LHS to RHS then its sign is changed and vice-versa. Here we are moving +7 of LHS to the RHS. So, we have to write -7 in the RHS of the equation. Similarly, we have to shift -40x of RHS to the LHS. So, we have to write +40x in the LHS of the equation.
Recently Updated Pages
Explain the Treaty of Vienna of 1815 class 10 social science CBSE

10 examples of friction in our daily life

Draw a diagram of nephron and explain its structur class 11 biology CBSE

Write structures of the following compounds i 2 Chloro3methylpentane class 11 chemistry CBSE

A Paragraph on Pollution in about 100-150 Words

XIX+XXX A 49 B 51 C 55 D 44 class 5 maths CBSE

Trending doubts
What is BLO What is the full form of BLO class 8 social science CBSE

Citizens of India can vote at the age of A 18 years class 8 social science CBSE

Full form of STD, ISD and PCO

What are the methods of reducing friction. Explain

What is the difference between rai and mustard see class 8 biology CBSE

Advantages and disadvantages of science


