-3(5t-12)=4t-21

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Solution for -3(5t-12)=4t-21 equation: 


Simplifying
-3(5t + -12) = 4t + -21

Reorder the terms:
-3(-12 + 5t) = 4t + -21
(-12 * -3 + 5t * -3) = 4t + -21
(36 + -15t) = 4t + -21

Reorder the terms:
36 + -15t = -21 + 4t

Solving
36 + -15t = -21 + 4t

Solving for variable 't'.

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

Add '-4t' to each side of the equation.
36 + -15t + -4t = -21 + 4t + -4t

Combine like terms: -15t + -4t = -19t
36 + -19t = -21 + 4t + -4t

Combine like terms: 4t + -4t = 0
36 + -19t = -21 + 0
36 + -19t = -21

Add '-36' to each side of the equation.
36 + -36 + -19t = -21 + -36

Combine like terms: 36 + -36 = 0
0 + -19t = -21 + -36
-19t = -21 + -36

Combine like terms: -21 + -36 = -57
-19t = -57

Divide each side by '-19'.
t = 3

Simplifying
t = 3

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