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-5t + 9 + 2t = 30

Combine like terms on the left side:

-3t + 9 = 30

Multiply both sides by -1"

3t - 9 = -30

Add 9 to both sides:

3t = -21

Divide both sides by 3:

t = -7

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Q: -5t plus 9 plus 2t equals 30?
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