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x+3x=10.500
We move all terms to the left:
x+3x-(10.500)=0
We add all the numbers together, and all the variables
x+3x-(10.5)=0
We add all the numbers together, and all the variables
4x-10.5=0
We move all terms containing x to the left, all other terms to the right
4x=10.5
x=10.5/4
x=2+1/1.6
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