9x^2-5=139

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Solution for 9x^2-5=139 equation: 


Simplifying
9x2 + -5 = 139

Reorder the terms:
-5 + 9x2 = 139

Solving
-5 + 9x2 = 139

Solving for variable 'x'.

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

Add '5' to each side of the equation.
-5 + 5 + 9x2 = 139 + 5

Combine like terms: -5 + 5 = 0
0 + 9x2 = 139 + 5
9x2 = 139 + 5

Combine like terms: 139 + 5 = 144
9x2 = 144

Divide each side by '9'.
x2 = 16

Simplifying
x2 = 16

Take the square root of each side:
x = {-4, 4}

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