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3t-13=7(t+2)-4(t-7)
We move all terms to the left:
3t-13-(7(t+2)-4(t-7))=0
We calculate terms in parentheses: -(7(t+2)-4(t-7)), so:We get rid of parentheses
7(t+2)-4(t-7)
We multiply parentheses
7t-4t+14+28
We add all the numbers together, and all the variables
3t+42
Back to the equation:
-(3t+42)
3t-3t-42-13=0
We add all the numbers together, and all the variables
-55!=0
There is no solution for this equation
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