t-4t=21

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Solution for t-4t=21 equation: 


Simplifying
t + -4t = 21

Combine like terms: t + -4t = -3t
-3t = 21

Solving
-3t = 21

Solving for variable 't'.

Move all terms containing t to the left, all other terms to the right.

Divide each side by '-3'.
t = -7

Simplifying
t = -7

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