9t-21=3(2t-8)

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Solution for 9t-21=3(2t-8) equation: 


Simplifying
9t + -21 = 3(2t + -8)

Reorder the terms:
-21 + 9t = 3(2t + -8)

Reorder the terms:
-21 + 9t = 3(-8 + 2t)
-21 + 9t = (-8 * 3 + 2t * 3)
-21 + 9t = (-24 + 6t)

Solving
-21 + 9t = -24 + 6t

Solving for variable 't'.

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

Add '-6t' to each side of the equation.
-21 + 9t + -6t = -24 + 6t + -6t

Combine like terms: 9t + -6t = 3t
-21 + 3t = -24 + 6t + -6t

Combine like terms: 6t + -6t = 0
-21 + 3t = -24 + 0
-21 + 3t = -24

Add '21' to each side of the equation.
-21 + 21 + 3t = -24 + 21

Combine like terms: -21 + 21 = 0
0 + 3t = -24 + 21
3t = -24 + 21

Combine like terms: -24 + 21 = -3
3t = -3

Divide each side by '3'.
t = -1

Simplifying
t = -1

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