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0.75x+0.25=4
We move all terms to the left:
0.75x+0.25-(4)=0
We add all the numbers together, and all the variables
0.75x-3.75=0
We move all terms containing x to the left, all other terms to the right
0.75x=3.75
x=3.75/0.75
x=5
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