8-9=21t-17

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Solution for 8-9=21t-17 equation:


Simplifying
8 + -9 = 21t + -17

Combine like terms: 8 + -9 = -1
-1 = 21t + -17

Reorder the terms:
-1 = -17 + 21t

Solving
-1 = -17 + 21t

Solving for variable 't'.

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

Add '-21t' to each side of the equation.
-1 + -21t = -17 + 21t + -21t

Combine like terms: 21t + -21t = 0
-1 + -21t = -17 + 0
-1 + -21t = -17

Add '1' to each side of the equation.
-1 + 1 + -21t = -17 + 1

Combine like terms: -1 + 1 = 0
0 + -21t = -17 + 1
-21t = -17 + 1

Combine like terms: -17 + 1 = -16
-21t = -16

Divide each side by '-21'.
t = 0.7619047619

Simplifying
t = 0.7619047619

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