9-4t=6t-21

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Solution for 9-4t=6t-21 equation:


Simplifying
9 + -4t = 6t + -21

Reorder the terms:
9 + -4t = -21 + 6t

Solving
9 + -4t = -21 + 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.
9 + -4t + -6t = -21 + 6t + -6t

Combine like terms: -4t + -6t = -10t
9 + -10t = -21 + 6t + -6t

Combine like terms: 6t + -6t = 0
9 + -10t = -21 + 0
9 + -10t = -21

Add '-9' to each side of the equation.
9 + -9 + -10t = -21 + -9

Combine like terms: 9 + -9 = 0
0 + -10t = -21 + -9
-10t = -21 + -9

Combine like terms: -21 + -9 = -30
-10t = -30

Divide each side by '-10'.
t = 3

Simplifying
t = 3

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