21=8-10t

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Solution for 21=8-10t equation:


Simplifying
21 = 8 + -10t

Solving
21 = 8 + -10t

Solving for variable 't'.

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

Add '10t' to each side of the equation.
21 + 10t = 8 + -10t + 10t

Combine like terms: -10t + 10t = 0
21 + 10t = 8 + 0
21 + 10t = 8

Add '-21' to each side of the equation.
21 + -21 + 10t = 8 + -21

Combine like terms: 21 + -21 = 0
0 + 10t = 8 + -21
10t = 8 + -21

Combine like terms: 8 + -21 = -13
10t = -13

Divide each side by '10'.
t = -1.3

Simplifying
t = -1.3

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