3t+21=15

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Solution for 3t+21=15 equation:


3t+21=15

We simplify the equation to the form, which is simple to understand 
3t+21=15

We move all terms containing t to the left and all other terms to the right. 
+3t=+15-21

We simplify left and right side of the equation. 
+3t=-6

We divide both sides of the equation by 3 to get t. 
t=-2

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