-1+7t=-9+9t

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Solution for -1+7t=-9+9t equation: 



-1+7t=-9+9t

We move all terms to the left:

-1+7t-(-9+9t)=0

We add all the numbers together, and all the variables

7t-(9t-9)-1=0

We get rid of parentheses

7t-9t+9-1=0

We add all the numbers together, and all the variables

-2t+8=0

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

-2t=-8

t=-8/-2

t=+4

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