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4x+3x=12.500
We move all terms to the left:
4x+3x-(12.500)=0
We add all the numbers together, and all the variables
4x+3x-(12.5)=0
We add all the numbers together, and all the variables
7x-12.5=0
We move all terms containing x to the left, all other terms to the right
7x=12.5
x=12.5/7
x=1+3.6666666666667/4.6666666666667
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