-9(5+r)=18

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Solution for -9(5+r)=18 equation: 


Simplifying
-9(5 + r) = 18
(5 * -9 + r * -9) = 18
(-45 + -9r) = 18

Solving
-45 + -9r = 18

Solving for variable 'r'.

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

Add '45' to each side of the equation.
-45 + 45 + -9r = 18 + 45

Combine like terms: -45 + 45 = 0
0 + -9r = 18 + 45
-9r = 18 + 45

Combine like terms: 18 + 45 = 63
-9r = 63

Divide each side by '-9'.
r = -7

Simplifying
r = -7

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