-8r-8-7+r+18=

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Solution for -8r-8-7+r+18= equation:


Simplifying
-8r + -8 + -7 + r + 18 = 0

Reorder the terms:
-8 + -7 + 18 + -8r + r = 0

Combine like terms: -8 + -7 = -15
-15 + 18 + -8r + r = 0

Combine like terms: -15 + 18 = 3
3 + -8r + r = 0

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

Solving
3 + -7r = 0

Solving for variable 'r'.

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

Add '-3' to each side of the equation.
3 + -3 + -7r = 0 + -3

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

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

Divide each side by '-7'.
r = 0.4285714286

Simplifying
r = 0.4285714286

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