-9(t-9)-(t+7)=8

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Solution for -9(t-9)-(t+7)=8 equation: 


Simplifying
-9(t + -9) + -1(t + 7) = 8

Reorder the terms:
-9(-9 + t) + -1(t + 7) = 8
(-9 * -9 + t * -9) + -1(t + 7) = 8
(81 + -9t) + -1(t + 7) = 8

Reorder the terms:
81 + -9t + -1(7 + t) = 8
81 + -9t + (7 * -1 + t * -1) = 8
81 + -9t + (-7 + -1t) = 8

Reorder the terms:
81 + -7 + -9t + -1t = 8

Combine like terms: 81 + -7 = 74
74 + -9t + -1t = 8

Combine like terms: -9t + -1t = -10t
74 + -10t = 8

Solving
74 + -10t = 8

Solving for variable 't'.

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

Add '-74' to each side of the equation.
74 + -74 + -10t = 8 + -74

Combine like terms: 74 + -74 = 0
0 + -10t = 8 + -74
-10t = 8 + -74

Combine like terms: 8 + -74 = -66
-10t = -66

Divide each side by '-10'.
t = 6.6

Simplifying
t = 6.6

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