18+r=-2r

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Solution for 18+r=-2r equation:


Simplifying
18 + r = -2r

Solving
18 + r = -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 + r + 2r = -2r + 2r

Combine like terms: r + 2r = 3r
18 + 3r = -2r + 2r

Combine like terms: -2r + 2r = 0
18 + 3r = 0

Add '-18' to each side of the equation.
18 + -18 + 3r = 0 + -18

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

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

Divide each side by '3'.
r = -6

Simplifying
r = -6

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