30+t=12+3t

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Solution for 30+t=12+3t equation: 



30+t=12+3t

We move all terms to the left:

30+t-(12+3t)=0

We add all the numbers together, and all the variables

t-(3t+12)+30=0

We get rid of parentheses

t-3t-12+30=0

We add all the numbers together, and all the variables

-2t+18=0

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

-2t=-18

t=-18/-2

t=+9

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