21v+8+12v+7+3t-t=

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Solution for 21v+8+12v+7+3t-t= equation:


Simplifying
21v + 8 + 12v + 7 + 3t + -1t = 0

Reorder the terms:
8 + 7 + 3t + -1t + 21v + 12v = 0

Combine like terms: 8 + 7 = 15
15 + 3t + -1t + 21v + 12v = 0

Combine like terms: 3t + -1t = 2t
15 + 2t + 21v + 12v = 0

Combine like terms: 21v + 12v = 33v
15 + 2t + 33v = 0

Solving
15 + 2t + 33v = 0

Solving for variable 't'.

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

Add '-15' to each side of the equation.
15 + 2t + -15 + 33v = 0 + -15

Reorder the terms:
15 + -15 + 2t + 33v = 0 + -15

Combine like terms: 15 + -15 = 0
0 + 2t + 33v = 0 + -15
2t + 33v = 0 + -15

Combine like terms: 0 + -15 = -15
2t + 33v = -15

Add '-33v' to each side of the equation.
2t + 33v + -33v = -15 + -33v

Combine like terms: 33v + -33v = 0
2t + 0 = -15 + -33v
2t = -15 + -33v

Divide each side by '2'.
t = -7.5 + -16.5v

Simplifying
t = -7.5 + -16.5v

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