(8+7r)+(8+r)=

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


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

Remove parenthesis around (8 + 7r)
8 + 7r + (8 + r) = 0

Remove parenthesis around (8 + r)
8 + 7r + 8 + r = 0

Reorder the terms:
8 + 8 + 7r + r = 0

Combine like terms: 8 + 8 = 16
16 + 7r + r = 0

Combine like terms: 7r + r = 8r
16 + 8r = 0

Solving
16 + 8r = 0

Solving for variable 'r'.

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

Add '-16' to each side of the equation.
16 + -16 + 8r = 0 + -16

Combine like terms: 16 + -16 = 0
0 + 8r = 0 + -16
8r = 0 + -16

Combine like terms: 0 + -16 = -16
8r = -16

Divide each side by '8'.
r = -2

Simplifying
r = -2

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