3t+t=12

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Solution for 3t+t=12 equation: 



3t+t=12

We move all terms to the left:

3t+t-(12)=0

We add all the numbers together, and all the variables

4t-12=0

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

4t=12

t=12/4

t=3

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