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4x-8=3+12
We move all terms to the left:
4x-8-(3+12)=0
We add all the numbers together, and all the variables
4x-8-15=0
We add all the numbers together, and all the variables
4x-23=0
We move all terms containing x to the left, all other terms to the right
4x=23
x=23/4
x=5+3/4
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