3x^2-200=-x^2-20

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Solution for 3x^2-200=-x^2-20 equation:


Simplifying
3x2 + -200 = -1x2 + -20

Reorder the terms:
-200 + 3x2 = -1x2 + -20

Reorder the terms:
-200 + 3x2 = -20 + -1x2

Solving
-200 + 3x2 = -20 + -1x2

Solving for variable 'x'.

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

Add 'x2' to each side of the equation.
-200 + 3x2 + x2 = -20 + -1x2 + x2

Combine like terms: 3x2 + x2 = 4x2
-200 + 4x2 = -20 + -1x2 + x2

Combine like terms: -1x2 + x2 = 0
-200 + 4x2 = -20 + 0
-200 + 4x2 = -20

Add '200' to each side of the equation.
-200 + 200 + 4x2 = -20 + 200

Combine like terms: -200 + 200 = 0
0 + 4x2 = -20 + 200
4x2 = -20 + 200

Combine like terms: -20 + 200 = 180
4x2 = 180

Divide each side by '4'.
x2 = 45

Simplifying
x2 = 45

Take the square root of each side:
x = {-6.708203933, 6.708203933}

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