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7a+2=-4(7+-3)
We move all terms to the left:
7a+2-(-4(7+-3))=0
We add all the numbers together, and all the variables
7a+2-(-44)=0
We add all the numbers together, and all the variables
7a+46=0
We move all terms containing a to the left, all other terms to the right
7a=-46
a=-46/7
a=-6+4/7
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