30=-2r

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Solution for 30=-2r equation:


Simplifying
30 = -2r

Solving
30 = -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.
30 + 2r = -2r + 2r

Combine like terms: -2r + 2r = 0
30 + 2r = 0

Add '-30' to each side of the equation.
30 + -30 + 2r = 0 + -30

Combine like terms: 30 + -30 = 0
0 + 2r = 0 + -30
2r = 0 + -30

Combine like terms: 0 + -30 = -30
2r = -30

Divide each side by '2'.
r = -15

Simplifying
r = -15

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