15t-8(t-8)=57

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Solution for 15t-8(t-8)=57 equation:


Simplifying
15t + -8(t + -8) = 57

Reorder the terms:
15t + -8(-8 + t) = 57
15t + (-8 * -8 + t * -8) = 57
15t + (64 + -8t) = 57

Reorder the terms:
64 + 15t + -8t = 57

Combine like terms: 15t + -8t = 7t
64 + 7t = 57

Solving
64 + 7t = 57

Solving for variable 't'.

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

Add '-64' to each side of the equation.
64 + -64 + 7t = 57 + -64

Combine like terms: 64 + -64 = 0
0 + 7t = 57 + -64
7t = 57 + -64

Combine like terms: 57 + -64 = -7
7t = -7

Divide each side by '7'.
t = -1

Simplifying
t = -1

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