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0.5(x-7)=3
We move all terms to the left:
0.5(x-7)-(3)=0
We multiply parentheses
0.5x-3.5-3=0
We add all the numbers together, and all the variables
0.5x-6.5=0
We move all terms containing x to the left, all other terms to the right
0.5x=6.5
x=6.5/0.5
x=13
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