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-7(x-19)=-84
We move all terms to the left:
-7(x-19)-(-84)=0
We add all the numbers together, and all the variables
-7(x-19)+84=0
We multiply parentheses
-7x+133+84=0
We add all the numbers together, and all the variables
-7x+217=0
We move all terms containing x to the left, all other terms to the right
-7x=-217
x=-217/-7
x=+31
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