9x^2-63+20=0

Solution for 9x^2-63+20=0 equation:

Simplifying
9x2 + -63 + 20 = 0

Reorder the terms:
-63 + 20 + 9x2 = 0

Combine like terms: -63 + 20 = -43
-43 + 9x2 = 0

Solving
-43 + 9x2 = 0

Solving for variable 'x'.

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

Add '43' to each side of the equation.
-43 + 43 + 9x2 = 0 + 43

Combine like terms: -43 + 43 = 0
0 + 9x2 = 0 + 43
9x2 = 0 + 43

Combine like terms: 0 + 43 = 43
9x2 = 43

Divide each side by '9'.
x2 = 4.777777778

Simplifying
x2 = 4.777777778

Take the square root of each side:
x = {-2.185812841, 2.185812841}