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6(t+3)=21
We simplify the equation to the form, which is simple to understand
6(t+3)=21
Reorder the terms in parentheses
+(+6t+18)=21
Remove unnecessary parentheses
+6t+18=+21
We move all terms containing t to the left and all other terms to the right.
+6t=+21-18
We simplify left and right side of the equation.
+6t=+3
We divide both sides of the equation by 6 to get t.
t=0.5
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