4t+7t=2t-21

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Solution for 4t+7t=2t-21 equation: 



4t+7t=2t-21

We move all terms to the left:

4t+7t-(2t-21)=0

We add all the numbers together, and all the variables

11t-(2t-21)=0

We get rid of parentheses

11t-2t+21=0

We add all the numbers together, and all the variables

9t+21=0

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

9t=-21

t=-21/9

t=-2+1/3

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