30+t=12+3

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Solution for 30+t=12+3 equation: 



30+t=12+3

We move all terms to the left:

30+t-(12+3)=0

We add all the numbers together, and all the variables

t+30-15=0

We add all the numbers together, and all the variables

t+15=0

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

t=-15

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