3r^2-2=16

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Solution for 3r^2-2=16 equation: 


Simplifying
3r2 + -2 = 16

Reorder the terms:
-2 + 3r2 = 16

Solving
-2 + 3r2 = 16

Solving for variable 'r'.

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

Add '2' to each side of the equation.
-2 + 2 + 3r2 = 16 + 2

Combine like terms: -2 + 2 = 0
0 + 3r2 = 16 + 2
3r2 = 16 + 2

Combine like terms: 16 + 2 = 18
3r2 = 18

Divide each side by '3'.
r2 = 6

Simplifying
r2 = 6

Take the square root of each side:
r = {-2.449489743, 2.449489743}

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