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x+x=27+60
We move all terms to the left:
x+x-(27+60)=0
We add all the numbers together, and all the variables
x+x-87=0
We add all the numbers together, and all the variables
2x-87=0
We move all terms containing x to the left, all other terms to the right
2x=87
x=87/2
x=43+1/2
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