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-3x-1=4x-78
We move all terms to the left:
-3x-1-(4x-78)=0
We get rid of parentheses
-3x-4x+78-1=0
We add all the numbers together, and all the variables
-7x+77=0
We move all terms containing x to the left, all other terms to the right
-7x=-77
x=-77/-7
x=+11
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