-15-8-r=9(4r+18)

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Solution for -15-8-r=9(4r+18) equation:


Simplifying
-15 + -8 + -1r = 9(4r + 18)

Combine like terms: -15 + -8 = -23
-23 + -1r = 9(4r + 18)

Reorder the terms:
-23 + -1r = 9(18 + 4r)
-23 + -1r = (18 * 9 + 4r * 9)
-23 + -1r = (162 + 36r)

Solving
-23 + -1r = 162 + 36r

Solving for variable 'r'.

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

Add '-36r' to each side of the equation.
-23 + -1r + -36r = 162 + 36r + -36r

Combine like terms: -1r + -36r = -37r
-23 + -37r = 162 + 36r + -36r

Combine like terms: 36r + -36r = 0
-23 + -37r = 162 + 0
-23 + -37r = 162

Add '23' to each side of the equation.
-23 + 23 + -37r = 162 + 23

Combine like terms: -23 + 23 = 0
0 + -37r = 162 + 23
-37r = 162 + 23

Combine like terms: 162 + 23 = 185
-37r = 185

Divide each side by '-37'.
r = -5

Simplifying
r = -5

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