3x^2+2x^2=45

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Solution for 3x^2+2x^2=45 equation: 


Simplifying
3x2 + 2x2 = 45

Combine like terms: 3x2 + 2x2 = 5x2
5x2 = 45

Solving
5x2 = 45

Solving for variable 'x'.

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

Divide each side by '5'.
x2 = 9

Simplifying
x2 = 9

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

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