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38=-2(1-x)+5(x+1)
We move all terms to the left:
38-(-2(1-x)+5(x+1))=0
We add all the numbers together, and all the variables
-(-2(-1x+1)+5(x+1))+38=0
We calculate terms in parentheses: -(-2(-1x+1)+5(x+1)), so:We get rid of parentheses
-2(-1x+1)+5(x+1)
We multiply parentheses
2x+5x-2+5
We add all the numbers together, and all the variables
7x+3
Back to the equation:
-(7x+3)
-7x-3+38=0
We add all the numbers together, and all the variables
-7x+35=0
We move all terms containing x to the left, all other terms to the right
-7x=-35
x=-35/-7
x=+5
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