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-12t-7=15
We simplify the equation to the form, which is simple to understand
-12t-7=15
We move all terms containing t to the left and all other terms to the right.
-12t=+15+7
We simplify left and right side of the equation.
-12t=+22
We divide both sides of the equation by -12 to get t.
t=-1.83333333333
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