5+7=t-9

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Solution for 5+7=t-9 equation: 



5+7=t-9

We move all terms to the left:

5+7-(t-9)=0

We add all the numbers together, and all the variables

-(t-9)+12=0

We get rid of parentheses

-t+9+12=0

We add all the numbers together, and all the variables

-1t+21=0

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

-t=-21

t=-21/-1

t=+21

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