-9(t-9)-(t+1)=6

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Solution for -9(t-9)-(t+1)=6 equation:


Simplifying
-9(t + -9) + -1(t + 1) = 6

Reorder the terms:
-9(-9 + t) + -1(t + 1) = 6
(-9 * -9 + t * -9) + -1(t + 1) = 6
(81 + -9t) + -1(t + 1) = 6

Reorder the terms:
81 + -9t + -1(1 + t) = 6
81 + -9t + (1 * -1 + t * -1) = 6
81 + -9t + (-1 + -1t) = 6

Reorder the terms:
81 + -1 + -9t + -1t = 6

Combine like terms: 81 + -1 = 80
80 + -9t + -1t = 6

Combine like terms: -9t + -1t = -10t
80 + -10t = 6

Solving
80 + -10t = 6

Solving for variable 't'.

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

Add '-80' to each side of the equation.
80 + -80 + -10t = 6 + -80

Combine like terms: 80 + -80 = 0
0 + -10t = 6 + -80
-10t = 6 + -80

Combine like terms: 6 + -80 = -74
-10t = -74

Divide each side by '-10'.
t = 7.4

Simplifying
t = 7.4

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