3r-7r+8+r=

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Solution for 3r-7r+8+r= equation:


Simplifying
3r + -7r + 8 + r = 0

Reorder the terms:
8 + 3r + -7r + r = 0

Combine like terms: 3r + -7r = -4r
8 + -4r + r = 0

Combine like terms: -4r + r = -3r
8 + -3r = 0

Solving
8 + -3r = 0

Solving for variable 'r'.

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

Add '-8' to each side of the equation.
8 + -8 + -3r = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -3r = 0 + -8
-3r = 0 + -8

Combine like terms: 0 + -8 = -8
-3r = -8

Divide each side by '-3'.
r = 2.666666667

Simplifying
r = 2.666666667

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