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4(x+5)-3(7-2x)=0
We add all the numbers together, and all the variables
4(x+5)-3(-2x+7)=0
We multiply parentheses
4x+6x+20-21=0
We add all the numbers together, and all the variables
10x-1=0
We move all terms containing x to the left, all other terms to the right
10x=1
x=1/10
x=1/10
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