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5(x+7)=7.5x
We move all terms to the left:
5(x+7)-(7.5x)=0
We add all the numbers together, and all the variables
5(x+7)-(+7.5x)=0
We multiply parentheses
5x-(+7.5x)+35=0
We get rid of parentheses
5x-7.5x+35=0
We add all the numbers together, and all the variables
-2.5x+35=0
We move all terms containing x to the left, all other terms to the right
-2.5x=-35
x=-35/-2.5
x=+14
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