-15-3t=-21

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Solution for -15-3t=-21 equation: 


Simplifying
-15 + -3t = -21

Solving
-15 + -3t = -21

Solving for variable 't'.

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

Add '15' to each side of the equation.
-15 + 15 + -3t = -21 + 15

Combine like terms: -15 + 15 = 0
0 + -3t = -21 + 15
-3t = -21 + 15

Combine like terms: -21 + 15 = -6
-3t = -6

Divide each side by '-3'.
t = 2

Simplifying
t = 2

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