t+t+9=31

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Solution for t+t+9=31 equation: 



t+t+9=31

We move all terms to the left:

t+t+9-(31)=0

We add all the numbers together, and all the variables

2t-22=0

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

2t=22

t=22/2

t=11

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