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-8=-4(t+12)
We move all terms to the left:
-8-(-4(t+12))=0
We calculate terms in parentheses: -(-4(t+12)), so:We get rid of parentheses
-4(t+12)
We multiply parentheses
-4t-48
Back to the equation:
-(-4t-48)
4t+48-8=0
We add all the numbers together, and all the variables
4t+40=0
We move all terms containing t to the left, all other terms to the right
4t=-40
t=-40/4
t=-10
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