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-2+10x+84=25+7
We move all terms to the left:
-2+10x+84-(25+7)=0
We add all the numbers together, and all the variables
10x-2+84-32=0
We add all the numbers together, and all the variables
10x+50=0
We move all terms containing x to the left, all other terms to the right
10x=-50
x=-50/10
x=-5
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