18=-3t-9

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Solution for 18=-3t-9 equation:


Simplifying
18 = -3t + -9

Reorder the terms:
18 = -9 + -3t

Solving
18 = -9 + -3t

Solving for variable 't'.

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

Add '3t' to each side of the equation.
18 + 3t = -9 + -3t + 3t

Combine like terms: -3t + 3t = 0
18 + 3t = -9 + 0
18 + 3t = -9

Add '-18' to each side of the equation.
18 + -18 + 3t = -9 + -18

Combine like terms: 18 + -18 = 0
0 + 3t = -9 + -18
3t = -9 + -18

Combine like terms: -9 + -18 = -27
3t = -27

Divide each side by '3'.
t = -9

Simplifying
t = -9

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