-18=-3(r-11)

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Solution for -18=-3(r-11) equation:


Simplifying
-18 = -3(r + -11)

Reorder the terms:
-18 = -3(-11 + r)
-18 = (-11 * -3 + r * -3)
-18 = (33 + -3r)

Solving
-18 = 33 + -3r

Solving for variable 'r'.

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

Add '3r' to each side of the equation.
-18 + 3r = 33 + -3r + 3r

Combine like terms: -3r + 3r = 0
-18 + 3r = 33 + 0
-18 + 3r = 33

Add '18' to each side of the equation.
-18 + 18 + 3r = 33 + 18

Combine like terms: -18 + 18 = 0
0 + 3r = 33 + 18
3r = 33 + 18

Combine like terms: 33 + 18 = 51
3r = 51

Divide each side by '3'.
r = 17

Simplifying
r = 17

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