-3(r-9)=18

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Solution for -3(r-9)=18 equation:


Simplifying
-3(r + -9) = 18

Reorder the terms:
-3(-9 + r) = 18
(-9 * -3 + r * -3) = 18
(27 + -3r) = 18

Solving
27 + -3r = 18

Solving for variable 'r'.

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

Add '-27' to each side of the equation.
27 + -27 + -3r = 18 + -27

Combine like terms: 27 + -27 = 0
0 + -3r = 18 + -27
-3r = 18 + -27

Combine like terms: 18 + -27 = -9
-3r = -9

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

Simplifying
r = 3

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