r^2+10=30

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Solution for r^2+10=30 equation: 


Simplifying
r2 + 10 = 30

Reorder the terms:
10 + r2 = 30

Solving
10 + r2 = 30

Solving for variable 'r'.

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

Add '-10' to each side of the equation.
10 + -10 + r2 = 30 + -10

Combine like terms: 10 + -10 = 0
0 + r2 = 30 + -10
r2 = 30 + -10

Combine like terms: 30 + -10 = 20
r2 = 20

Simplifying
r2 = 20

Take the square root of each side:
r = {-4.472135955, 4.472135955}

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