-30=3(-5r)

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Solution for -30=3(-5r) equation:


Simplifying
-30 = 3(-5r)

Remove parenthesis around (-5r)
-30 = 3 * -5r

Multiply 3 * -5
-30 = -15r

Solving
-30 = -15r

Solving for variable 'r'.

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

Add '15r' to each side of the equation.
-30 + 15r = -15r + 15r

Combine like terms: -15r + 15r = 0
-30 + 15r = 0

Add '30' to each side of the equation.
-30 + 30 + 15r = 0 + 30

Combine like terms: -30 + 30 = 0
0 + 15r = 0 + 30
15r = 0 + 30

Combine like terms: 0 + 30 = 30
15r = 30

Divide each side by '15'.
r = 2

Simplifying
r = 2

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