-9(t-7)-(t+8)=11

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Solution for -9(t-7)-(t+8)=11 equation: 


Simplifying
-9(t + -7) + -1(t + 8) = 11

Reorder the terms:
-9(-7 + t) + -1(t + 8) = 11
(-7 * -9 + t * -9) + -1(t + 8) = 11
(63 + -9t) + -1(t + 8) = 11

Reorder the terms:
63 + -9t + -1(8 + t) = 11
63 + -9t + (8 * -1 + t * -1) = 11
63 + -9t + (-8 + -1t) = 11

Reorder the terms:
63 + -8 + -9t + -1t = 11

Combine like terms: 63 + -8 = 55
55 + -9t + -1t = 11

Combine like terms: -9t + -1t = -10t
55 + -10t = 11

Solving
55 + -10t = 11

Solving for variable 't'.

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

Add '-55' to each side of the equation.
55 + -55 + -10t = 11 + -55

Combine like terms: 55 + -55 = 0
0 + -10t = 11 + -55
-10t = 11 + -55

Combine like terms: 11 + -55 = -44
-10t = -44

Divide each side by '-10'.
t = 4.4

Simplifying
t = 4.4

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