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4x-121/2=3x+3.5
We move all terms to the left:
4x-121/2-(3x+3.5)=0
We get rid of parentheses
4x-3x-3.5-121/2=0
We multiply all the terms by the denominator
4x*2-3x*2-121-(3.5)*2=0
We add all the numbers together, and all the variables
4x*2-3x*2-128=0
Wy multiply elements
8x-6x-128=0
We add all the numbers together, and all the variables
2x-128=0
We move all terms containing x to the left, all other terms to the right
2x=128
x=128/2
x=64
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