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x+49+x+139=180.x
We move all terms to the left:
x+49+x+139-(180.x)=0
We add all the numbers together, and all the variables
x+x-(+180.x)+49+139=0
We add all the numbers together, and all the variables
2x-(+180.x)+188=0
We get rid of parentheses
2x-180.x+188=0
We add all the numbers together, and all the variables
-178x+188=0
We move all terms containing x to the left, all other terms to the right
-178x=-188
x=-188/-178
x=1+5/89
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