9(r+8)+7r=

Solution for 9(r+8)+7r= equation:

Simplifying
9(r + 8) + 7r = 0

Reorder the terms:
9(8 + r) + 7r = 0
(8 * 9 + r * 9) + 7r = 0
(72 + 9r) + 7r = 0

Combine like terms: 9r + 7r = 16r
72 + 16r = 0

Solving
72 + 16r = 0

Solving for variable 'r'.

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

Add '-72' to each side of the equation.
72 + -72 + 16r = 0 + -72

Combine like terms: 72 + -72 = 0
0 + 16r = 0 + -72
16r = 0 + -72

Combine like terms: 0 + -72 = -72
16r = -72

Divide each side by '16'.
r = -4.5

Simplifying
r = -4.5