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3.75x+30=56.25
We move all terms to the left:
3.75x+30-(56.25)=0
We add all the numbers together, and all the variables
3.75x-26.25=0
We move all terms containing x to the left, all other terms to the right
3.75x=26.25
x=26.25/3.75
x=7
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