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x+x+150+x/2=750
We move all terms to the left:
x+x+150+x/2-(750)=0
We add all the numbers together, and all the variables
2x+x/2-600=0
We multiply all the terms by the denominator
2x*2+x-600*2=0
We add all the numbers together, and all the variables
x+2x*2-1200=0
Wy multiply elements
x+4x-1200=0
We add all the numbers together, and all the variables
5x-1200=0
We move all terms containing x to the left, all other terms to the right
5x=1200
x=1200/5
x=240
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