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7x+11+4x-5+3x+8=180
We move all terms to the left:
7x+11+4x-5+3x+8-(180)=0
We add all the numbers together, and all the variables
14x-166=0
We move all terms containing x to the left, all other terms to the right
14x=166
x=166/14
x=11+6/7
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