=7+(t+9)+5+t

Solution for =7+(t+9)+5+t equation:

Simplifying
0 = 7 + (t + 9) + 5 + t

Reorder the terms:
0 = 7 + (9 + t) + 5 + t

Remove parenthesis around (9 + t)
0 = 7 + 9 + t + 5 + t

Reorder the terms:
0 = 7 + 9 + 5 + t + t

Combine like terms: 7 + 9 = 16
0 = 16 + 5 + t + t

Combine like terms: 16 + 5 = 21
0 = 21 + t + t

Combine like terms: t + t = 2t
0 = 21 + 2t

Solving
0 = 21 + 2t

Solving for variable 't'.

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

Add '-2t' to each side of the equation.
0 + -2t = 21 + 2t + -2t
Remove the zero:
-2t = 21 + 2t + -2t

Combine like terms: 2t + -2t = 0
-2t = 21 + 0
-2t = 21

Divide each side by '-2'.
t = -10.5

Simplifying
t = -10.5