Two Step Equation Solution

Please help me to solve this two step equation.
18 = -a + 2

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Two Step Equation Solution

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Feb 23, 2010
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by: Karin

This is a two step equation because the variable term is negative. So, here's the solution:

18 = -a +2
18 - 2 = -a + 2 -2 Subtract 2 from both sides
16 = -a Simplify
16/-1 = -a/-1 Divide by -1

-16 = a

You have to divide by negative 1 in order to make a positive.

Hope this helps,
Karin

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