18=2(r-3)

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Solution for 18=2(r-3) equation:


Simplifying
18 = 2(r + -3)

Reorder the terms:
18 = 2(-3 + r)
18 = (-3 * 2 + r * 2)
18 = (-6 + 2r)

Solving
18 = -6 + 2r

Solving for variable 'r'.

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

Add '-2r' to each side of the equation.
18 + -2r = -6 + 2r + -2r

Combine like terms: 2r + -2r = 0
18 + -2r = -6 + 0
18 + -2r = -6

Add '-18' to each side of the equation.
18 + -18 + -2r = -6 + -18

Combine like terms: 18 + -18 = 0
0 + -2r = -6 + -18
-2r = -6 + -18

Combine like terms: -6 + -18 = -24
-2r = -24

Divide each side by '-2'.
r = 12

Simplifying
r = 12

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