(7t-21)+(t+14)=15

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Solution for (7t-21)+(t+14)=15 equation: 



(7t-21)+(t+14)=15

We move all terms to the left:

(7t-21)+(t+14)-(15)=0

We get rid of parentheses

7t+t-21+14-15=0

We add all the numbers together, and all the variables

8t-22=0

We move all terms containing t to the left, all other terms to the right

8t=22

t=22/8

t=2+3/4

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