3r+7+5r=

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Solution for 3r+7+5r= equation: 


Simplifying
3r + 7 + 5r = 0

Reorder the terms:
7 + 3r + 5r = 0

Combine like terms: 3r + 5r = 8r
7 + 8r = 0

Solving
7 + 8r = 0

Solving for variable 'r'.

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

Add '-7' to each side of the equation.
7 + -7 + 8r = 0 + -7

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

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

Divide each side by '8'.
r = -0.875

Simplifying
r = -0.875

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