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7x-135/2=2x
We move all terms to the left:
7x-135/2-(2x)=0
We add all the numbers together, and all the variables
5x-135/2=0
We multiply all the terms by the denominator
5x*2-135=0
Wy multiply elements
10x-135=0
We move all terms containing x to the left, all other terms to the right
10x=135
x=135/10
x=13+1/2
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