30r^2=-15r

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Solution for 30r^2=-15r equation:


Simplifying
30r2 = -15r

Solving
30r2 = -15r

Solving for variable 'r'.

Reorder the terms:
15r + 30r2 = -15r + 15r

Combine like terms: -15r + 15r = 0
15r + 30r2 = 0

Factor out the Greatest Common Factor (GCF), '15r'.
15r(1 + 2r) = 0

Ignore the factor 15.

Subproblem 1

Set the factor 'r' equal to zero and attempt to solve: Simplifying r = 0 Solving r = 0 Move all terms containing r to the left, all other terms to the right. Simplifying r = 0

Subproblem 2

Set the factor '(1 + 2r)' equal to zero and attempt to solve: Simplifying 1 + 2r = 0 Solving 1 + 2r = 0 Move all terms containing r to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 2r = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2r = 0 + -1 2r = 0 + -1 Combine like terms: 0 + -1 = -1 2r = -1 Divide each side by '2'. r = -0.5 Simplifying r = -0.5

Solution

r = {0, -0.5}

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