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50*3x+2x+x=540
We move all terms to the left:
50*3x+2x+x-(540)=0
We add all the numbers together, and all the variables
3x+50*3x-540=0
Wy multiply elements
3x+150x-540=0
We add all the numbers together, and all the variables
153x-540=0
We move all terms containing x to the left, all other terms to the right
153x=540
x=540/153
x=3+9/17
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