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4x+5x+4+3x+2x+2=180
We move all terms to the left:
4x+5x+4+3x+2x+2-(180)=0
We add all the numbers together, and all the variables
14x-174=0
We move all terms containing x to the left, all other terms to the right
14x=174
x=174/14
x=12+3/7
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