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4x/5+7=12
We move all terms to the left:
4x/5+7-(12)=0
We add all the numbers together, and all the variables
4x/5-5=0
We multiply all the terms by the denominator
4x-5*5=0
We add all the numbers together, and all the variables
4x-25=0
We move all terms containing x to the left, all other terms to the right
4x=25
x=25/4
x=6+1/4
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