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-9(x-13)=162
We move all terms to the left:
-9(x-13)-(162)=0
We multiply parentheses
-9x+117-162=0
We add all the numbers together, and all the variables
-9x-45=0
We move all terms containing x to the left, all other terms to the right
-9x=45
x=45/-9
x=-5
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