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-x=10+2(90-2)
We move all terms to the left:
-x-(10+2(90-2))=0
We add all the numbers together, and all the variables
-x-(10+288)=0
We add all the numbers together, and all the variables
-1x-298=0
We move all terms containing x to the left, all other terms to the right
-x=298
x=298/-1
x=-298
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