-3(-x-7)=0.5(x+2)

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Solution for -3(-x-7)=0.5(x+2) equation:



-3(-x-7)=0.5(x+2)
We move all terms to the left:
-3(-x-7)-(0.5(x+2))=0
We add all the numbers together, and all the variables
-3(-1x-7)-(0.5(x+2))=0
We multiply parentheses
3x-(0.5(x+2))+21=0
We calculate terms in parentheses: -(0.5(x+2)), so:
0.5(x+2)
We multiply parentheses
0.5x+1
Back to the equation:
-(0.5x+1)
We get rid of parentheses
3x-0.5x-1+21=0
We add all the numbers together, and all the variables
2.5x+20=0
We move all terms containing x to the left, all other terms to the right
2.5x=-20
x=-20/2.5
x=-8

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