-19=30-7x^2

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Solution for -19=30-7x^2 equation:


Simplifying
-19 = 30 + -7x2

Solving
-19 = 30 + -7x2

Solving for variable 'x'.

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

Add '7x2' to each side of the equation.
-19 + 7x2 = 30 + -7x2 + 7x2

Combine like terms: -7x2 + 7x2 = 0
-19 + 7x2 = 30 + 0
-19 + 7x2 = 30

Add '19' to each side of the equation.
-19 + 19 + 7x2 = 30 + 19

Combine like terms: -19 + 19 = 0
0 + 7x2 = 30 + 19
7x2 = 30 + 19

Combine like terms: 30 + 19 = 49
7x2 = 49

Divide each side by '7'.
x2 = 7

Simplifying
x2 = 7

Take the square root of each side:
x = {-2.645751311, 2.645751311}

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