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

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


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

Reorder the terms:
3 + -2(-8 + 2t) = -21
3 + (-8 * -2 + 2t * -2) = -21
3 + (16 + -4t) = -21

Combine like terms: 3 + 16 = 19
19 + -4t = -21

Solving
19 + -4t = -21

Solving for variable 't'.

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

Add '-19' to each side of the equation.
19 + -19 + -4t = -21 + -19

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

Combine like terms: -21 + -19 = -40
-4t = -40

Divide each side by '-4'.
t = 10

Simplifying
t = 10

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