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(x)=-x+2(-5)
We move all terms to the left:
(x)-(-x+2(-5))=0
We calculate terms in parentheses: -(-x+2(-5)), so:We get rid of parentheses
-x+2(-5)
We add all the numbers together, and all the variables
-1x-10
Back to the equation:
-(-1x-10)
x+1x+10=0
We add all the numbers together, and all the variables
2x+10=0
We move all terms containing x to the left, all other terms to the right
2x=-10
x=-10/2
x=-5
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