Question

I need a run down on how to do multi step equations.Number 3 only

Answer 1

x=-7

Step-by-step explanation:

Given the equation:

`8x-2=-9+7x`

To solve equations of this form, the goal is to try to bring all the terms containing the variable (letter x or any letter) to one side of the equation and the constants to the other side.

First, subtract 7x from both sides.

`\begin{gathered} 8x\textcolor{red}{-7x}-2=-9+7x\textcolor{red}{-7x} \\ x-2=-9 \end{gathered}`

Next, add 2 to both sides.

`\begin{gathered} x-2+2=-9+2 \\ x+0=-7 \\ \implies x=-7 \end{gathered}`

The value of x is -7.