8-9t=21r-17

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


Simplifying
8 + -9t = 21r + -17

Reorder the terms:
8 + -9t = -17 + 21r

Solving
8 + -9t = -17 + 21r

Solving for variable 't'.

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

Add '-8' to each side of the equation.
8 + -8 + -9t = -17 + -8 + 21r

Combine like terms: 8 + -8 = 0
0 + -9t = -17 + -8 + 21r
-9t = -17 + -8 + 21r

Combine like terms: -17 + -8 = -25
-9t = -25 + 21r

Divide each side by '-9'.
t = 2.777777778 + -2.333333333r

Simplifying
t = 2.777777778 + -2.333333333r

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