3u^2-2=-2

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Solution for 3u^2-2=-2 equation: 


Simplifying
3u2 + -2 = -2

Reorder the terms:
-2 + 3u2 = -2

Add '2' to each side of the equation.
-2 + 2 + 3u2 = -2 + 2

Combine like terms: -2 + 2 = 0
0 + 3u2 = -2 + 2
3u2 = -2 + 2

Combine like terms: -2 + 2 = 0
3u2 = 0

Solving
3u2 = 0

Solving for variable 'u'.

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

Divide each side by '3'.
u2 = 0

Simplifying
u2 = 0

Take the square root of each side:
u = {0}

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