7x^2+30=9

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Solution for 7x^2+30=9 equation:


Simplifying
7x2 + 30 = 9

Reorder the terms:
30 + 7x2 = 9

Solving
30 + 7x2 = 9

Solving for variable 'x'.

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

Add '-30' to each side of the equation.
30 + -30 + 7x2 = 9 + -30

Combine like terms: 30 + -30 = 0
0 + 7x2 = 9 + -30
7x2 = 9 + -30

Combine like terms: 9 + -30 = -21
7x2 = -21

Divide each side by '7'.
x2 = -3

Simplifying
x2 = -3

Reorder the terms:
3 + x2 = -3 + 3

Combine like terms: -3 + 3 = 0
3 + x2 = 0

The solution to this equation could not be determined.

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