-9-3(3r-1)=-18

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Solution for -9-3(3r-1)=-18 equation:


Simplifying
-9 + -3(3r + -1) = -18

Reorder the terms:
-9 + -3(-1 + 3r) = -18
-9 + (-1 * -3 + 3r * -3) = -18
-9 + (3 + -9r) = -18

Combine like terms: -9 + 3 = -6
-6 + -9r = -18

Solving
-6 + -9r = -18

Solving for variable 'r'.

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

Add '6' to each side of the equation.
-6 + 6 + -9r = -18 + 6

Combine like terms: -6 + 6 = 0
0 + -9r = -18 + 6
-9r = -18 + 6

Combine like terms: -18 + 6 = -12
-9r = -12

Divide each side by '-9'.
r = 1.333333333

Simplifying
r = 1.333333333

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