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

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


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

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

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

Reorder the terms:
63 + -9 + -7t + -1t = 9

Combine like terms: 63 + -9 = 54
54 + -7t + -1t = 9

Combine like terms: -7t + -1t = -8t
54 + -8t = 9

Solving
54 + -8t = 9

Solving for variable 't'.

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

Add '-54' to each side of the equation.
54 + -54 + -8t = 9 + -54

Combine like terms: 54 + -54 = 0
0 + -8t = 9 + -54
-8t = 9 + -54

Combine like terms: 9 + -54 = -45
-8t = -45

Divide each side by '-8'.
t = 5.625

Simplifying
t = 5.625

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