8(r+9)+7r=

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


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

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

Combine like terms: 8r + 7r = 15r
72 + 15r = 0

Solving
72 + 15r = 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 + 15r = 0 + -72

Combine like terms: 72 + -72 = 0
0 + 15r = 0 + -72
15r = 0 + -72

Combine like terms: 0 + -72 = -72
15r = -72

Divide each side by '15'.
r = -4.8

Simplifying
r = -4.8

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