-3(2t+1)=-21

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Solution for -3(2t+1)=-21 equation: 


Simplifying
-3(2t + 1) = -21

Reorder the terms:
-3(1 + 2t) = -21
(1 * -3 + 2t * -3) = -21
(-3 + -6t) = -21

Solving
-3 + -6t = -21

Solving for variable 't'.

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

Add '3' to each side of the equation.
-3 + 3 + -6t = -21 + 3

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

Combine like terms: -21 + 3 = -18
-6t = -18

Divide each side by '-6'.
t = 3

Simplifying
t = 3

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