21t-35=13t-15

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Solution for 21t-35=13t-15 equation:


Simplifying
21t + -35 = 13t + -15

Reorder the terms:
-35 + 21t = 13t + -15

Reorder the terms:
-35 + 21t = -15 + 13t

Solving
-35 + 21t = -15 + 13t

Solving for variable 't'.

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

Add '-13t' to each side of the equation.
-35 + 21t + -13t = -15 + 13t + -13t

Combine like terms: 21t + -13t = 8t
-35 + 8t = -15 + 13t + -13t

Combine like terms: 13t + -13t = 0
-35 + 8t = -15 + 0
-35 + 8t = -15

Add '35' to each side of the equation.
-35 + 35 + 8t = -15 + 35

Combine like terms: -35 + 35 = 0
0 + 8t = -15 + 35
8t = -15 + 35

Combine like terms: -15 + 35 = 20
8t = 20

Divide each side by '8'.
t = 2.5

Simplifying
t = 2.5

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