-8(t-9)-(t+9)=3

Solution for -8(t-9)-(t+9)=3 equation:

Simplifying
-8(t + -9) + -1(t + 9) = 3

Reorder the terms:
-8(-9 + t) + -1(t + 9) = 3
(-9 * -8 + t * -8) + -1(t + 9) = 3
(72 + -8t) + -1(t + 9) = 3

Reorder the terms:
72 + -8t + -1(9 + t) = 3
72 + -8t + (9 * -1 + t * -1) = 3
72 + -8t + (-9 + -1t) = 3

Reorder the terms:
72 + -9 + -8t + -1t = 3

Combine like terms: 72 + -9 = 63
63 + -8t + -1t = 3

Combine like terms: -8t + -1t = -9t
63 + -9t = 3

Solving
63 + -9t = 3

Solving for variable 't'.

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

Add '-63' to each side of the equation.
63 + -63 + -9t = 3 + -63

Combine like terms: 63 + -63 = 0
0 + -9t = 3 + -63
-9t = 3 + -63

Combine like terms: 3 + -63 = -60
-9t = -60

Divide each side by '-9'.
t = 6.666666667

Simplifying
t = 6.666666667