2x^2-9=x^2-20

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Solution for 2x^2-9=x^2-20 equation:


Simplifying
2x2 + -9 = x2 + -20

Reorder the terms:
-9 + 2x2 = x2 + -20

Reorder the terms:
-9 + 2x2 = -20 + x2

Solving
-9 + 2x2 = -20 + x2

Solving for variable 'x'.

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

Add '-1x2' to each side of the equation.
-9 + 2x2 + -1x2 = -20 + x2 + -1x2

Combine like terms: 2x2 + -1x2 = 1x2
-9 + 1x2 = -20 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-9 + 1x2 = -20 + 0
-9 + 1x2 = -20

Add '9' to each side of the equation.
-9 + 9 + 1x2 = -20 + 9

Combine like terms: -9 + 9 = 0
0 + 1x2 = -20 + 9
1x2 = -20 + 9

Combine like terms: -20 + 9 = -11
1x2 = -11

Divide each side by '1'.
x2 = -11

Simplifying
x2 = -11

Reorder the terms:
11 + x2 = -11 + 11

Combine like terms: -11 + 11 = 0
11 + x2 = 0

The solution to this equation could not be determined.

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