27=18t+21-16t

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Solution for 27=18t+21-16t equation:


Simplifying
27 = 18t + 21 + -16t

Reorder the terms:
27 = 21 + 18t + -16t

Combine like terms: 18t + -16t = 2t
27 = 21 + 2t

Solving
27 = 21 + 2t

Solving for variable 't'.

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

Add '-2t' to each side of the equation.
27 + -2t = 21 + 2t + -2t

Combine like terms: 2t + -2t = 0
27 + -2t = 21 + 0
27 + -2t = 21

Add '-27' to each side of the equation.
27 + -27 + -2t = 21 + -27

Combine like terms: 27 + -27 = 0
0 + -2t = 21 + -27
-2t = 21 + -27

Combine like terms: 21 + -27 = -6
-2t = -6

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

Simplifying
t = 3

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