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4x+3=+18
We move all terms to the left:
4x+3-(+18)=0
We add all the numbers together, and all the variables
4x+3-18=0
We add all the numbers together, and all the variables
4x-15=0
We move all terms containing x to the left, all other terms to the right
4x=15
x=15/4
x=3+3/4
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