r+4+7r=

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Solution for r+4+7r= equation: 


Simplifying
r + 4 + 7r = 0

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

Combine like terms: r + 7r = 8r
4 + 8r = 0

Solving
4 + 8r = 0

Solving for variable 'r'.

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

Add '-4' to each side of the equation.
4 + -4 + 8r = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 8r = 0 + -4
8r = 0 + -4

Combine like terms: 0 + -4 = -4
8r = -4

Divide each side by '8'.
r = -0.5

Simplifying
r = -0.5

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