3r^2+18=24

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Solution for 3r^2+18=24 equation: 


Simplifying
3r2 + 18 = 24

Reorder the terms:
18 + 3r2 = 24

Solving
18 + 3r2 = 24

Solving for variable 'r'.

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

Add '-18' to each side of the equation.
18 + -18 + 3r2 = 24 + -18

Combine like terms: 18 + -18 = 0
0 + 3r2 = 24 + -18
3r2 = 24 + -18

Combine like terms: 24 + -18 = 6
3r2 = 6

Divide each side by '3'.
r2 = 2

Simplifying
r2 = 2

Take the square root of each side:
r = {-1.414213562, 1.414213562}

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