2x^2+3x^2=84

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Solution for 2x^2+3x^2=84 equation: 


Simplifying
2x2 + 3x2 = 84

Combine like terms: 2x2 + 3x2 = 5x2
5x2 = 84

Solving
5x2 = 84

Solving for variable 'x'.

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

Divide each side by '5'.
x2 = 16.8

Simplifying
x2 = 16.8

Take the square root of each side:
x = {-4.098780306, 4.098780306}

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