Question

E) 2 x+$7=$12I need help

Answer 1

To solve the following equation we are going to use inverse operations to solve equations, that means addition and subtraction are inverse operations, multiplication and division too.

Then,

`\begin{gathered} (1)/(2)x+7=12 \\ (1)/(2)x=12-7 \\ x=5\cdot2 \\ x=10 \end{gathered}`