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x*3+4x*2+3x-240=0
We add all the numbers together, and all the variables
3x+x*3+4x*2-240=0
Wy multiply elements
3x+3x+8x-240=0
We add all the numbers together, and all the variables
14x-240=0
We move all terms containing x to the left, all other terms to the right
14x=240
x=240/14
x=17+1/7
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