7+3a=-2

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Solution for 7+3a=-2 equation:



7+3a=-2
We move all terms to the left:
7+3a-(-2)=0
We add all the numbers together, and all the variables
3a+9=0
We move all terms containing a to the left, all other terms to the right
3a=-9
a=-9/3
a=-3

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