-4(t-9)-(t+8)=9

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Solution for -4(t-9)-(t+8)=9 equation:


Simplifying
-4(t + -9) + -1(t + 8) = 9

Reorder the terms:
-4(-9 + t) + -1(t + 8) = 9
(-9 * -4 + t * -4) + -1(t + 8) = 9
(36 + -4t) + -1(t + 8) = 9

Reorder the terms:
36 + -4t + -1(8 + t) = 9
36 + -4t + (8 * -1 + t * -1) = 9
36 + -4t + (-8 + -1t) = 9

Reorder the terms:
36 + -8 + -4t + -1t = 9

Combine like terms: 36 + -8 = 28
28 + -4t + -1t = 9

Combine like terms: -4t + -1t = -5t
28 + -5t = 9

Solving
28 + -5t = 9

Solving for variable 't'.

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

Add '-28' to each side of the equation.
28 + -28 + -5t = 9 + -28

Combine like terms: 28 + -28 = 0
0 + -5t = 9 + -28
-5t = 9 + -28

Combine like terms: 9 + -28 = -19
-5t = -19

Divide each side by '-5'.
t = 3.8

Simplifying
t = 3.8

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