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

I need a run down on how to do multi step equations.Number 3 only-example-1
User Jstngoulet
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6 votes

Answer:

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.

User Ry Jones
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