Question

Solve the following equation and check your answer.
$5x-2x+7=x+1$

Answer 1

Given equation $5x-2x+7=x+1$
$\Rightarrow 3x+7=x+1$
$\Rightarrow 3x-x=1-7$
$\Rightarrow 2x=-6$
$\Rightarrow x=\frac{-6}{2}$
$\therefore x=-3$
Verification:
Substitute $x=-3$ in given equation, we get
$5(-3)-2(-3)+7=-3+1$
$\Rightarrow -15+6+7=-2$
$\Rightarrow -2=-2$
Therefore, L.H.S$=$R.H.S
Hence, verified.