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t+12.8=-6.3
We simplify the equation to the form, which is simple to understand
t+12.8=-6.3
We move all terms containing t to the left and all other terms to the right.
+1t=-6.3-12.8
We simplify left and right side of the equation.
+1t=-19.1
We divide both sides of the equation by 1 to get t.
t=-19.1
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