Question

Use the systematic method to solve the following equation $3(x-2)=15$.

Answer 1

Given equation is : $3(x-2)=15$

Divide both the sides by 3

$\begin{array}{rcl}\frac{[3(x–2\left)\right]}{3}& =& \frac{15}{3}\\ x–2& =& 5\\ x& =& 5+2\\ x& =& 7\end{array}$

Hence, $x=7$ is the solution.