9(2+t)-7(t+1)=

Solution for 9(2+t)-7(t+1)= equation:

Simplifying
9(2 + t) + -7(t + 1) = 0
(2 * 9 + t * 9) + -7(t + 1) = 0
(18 + 9t) + -7(t + 1) = 0

Reorder the terms:
18 + 9t + -7(1 + t) = 0
18 + 9t + (1 * -7 + t * -7) = 0
18 + 9t + (-7 + -7t) = 0

Reorder the terms:
18 + -7 + 9t + -7t = 0

Combine like terms: 18 + -7 = 11
11 + 9t + -7t = 0

Combine like terms: 9t + -7t = 2t
11 + 2t = 0

Solving
11 + 2t = 0

Solving for variable 't'.

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

Add '-11' to each side of the equation.
11 + -11 + 2t = 0 + -11

Combine like terms: 11 + -11 = 0
0 + 2t = 0 + -11
2t = 0 + -11

Combine like terms: 0 + -11 = -11
2t = -11

Divide each side by '2'.
t = -5.5

Simplifying
t = -5.5