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5(4x+7)=-45+20
We move all terms to the left:
5(4x+7)-(-45+20)=0
We add all the numbers together, and all the variables
5(4x+7)-(-25)=0
We add all the numbers together, and all the variables
5(4x+7)+25=0
We multiply parentheses
20x+35+25=0
We add all the numbers together, and all the variables
20x+60=0
We move all terms containing x to the left, all other terms to the right
20x=-60
x=-60/20
x=-3
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