2x^2+18=x^2+27

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Solution for 2x^2+18=x^2+27 equation: 


Simplifying
2x2 + 18 = x2 + 27

Reorder the terms:
18 + 2x2 = x2 + 27

Reorder the terms:
18 + 2x2 = 27 + x2

Solving
18 + 2x2 = 27 + 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.
18 + 2x2 + -1x2 = 27 + x2 + -1x2

Combine like terms: 2x2 + -1x2 = 1x2
18 + 1x2 = 27 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
18 + 1x2 = 27 + 0
18 + 1x2 = 27

Add '-18' to each side of the equation.
18 + -18 + 1x2 = 27 + -18

Combine like terms: 18 + -18 = 0
0 + 1x2 = 27 + -18
1x2 = 27 + -18

Combine like terms: 27 + -18 = 9
1x2 = 9

Divide each side by '1'.
x2 = 9

Simplifying
x2 = 9

Take the square root of each side:
x = {-3, 3}

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