8r-18=-4+r

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Solution for 8r-18=-4+r equation:


Simplifying
8r + -18 = -4 + r

Reorder the terms:
-18 + 8r = -4 + r

Solving
-18 + 8r = -4 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
-18 + 8r + -1r = -4 + r + -1r

Combine like terms: 8r + -1r = 7r
-18 + 7r = -4 + r + -1r

Combine like terms: r + -1r = 0
-18 + 7r = -4 + 0
-18 + 7r = -4

Add '18' to each side of the equation.
-18 + 18 + 7r = -4 + 18

Combine like terms: -18 + 18 = 0
0 + 7r = -4 + 18
7r = -4 + 18

Combine like terms: -4 + 18 = 14
7r = 14

Divide each side by '7'.
r = 2

Simplifying
r = 2

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