12+-7t=30+2t

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Solution for 12+-7t=30+2t equation: 



12+-7t=30+2t

We move all terms to the left:

12+-7t-(30+2t)=0

We add all the numbers together, and all the variables

-7t-(2t+30)+12+=0

We add all the numbers together, and all the variables

-7t-(2t+30)=0

We get rid of parentheses

-7t-2t-30=0

We add all the numbers together, and all the variables

-9t-30=0

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

-9t=30

t=30/-9

t=-3+1/3

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