16-x^2-3=.12x^2-.3

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Solution for 16-x^2-3=.12x^2-.3 equation: 


Simplifying
16 + -1x2 + -3 = 0.12x2 + -0.3

Reorder the terms:
16 + -3 + -1x2 = 0.12x2 + -0.3

Combine like terms: 16 + -3 = 13
13 + -1x2 = 0.12x2 + -0.3

Reorder the terms:
13 + -1x2 = -0.3 + 0.12x2

Solving
13 + -1x2 = -0.3 + 0.12x2

Solving for variable 'x'.

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

Add '-0.12x2' to each side of the equation.
13 + -1x2 + -0.12x2 = -0.3 + 0.12x2 + -0.12x2

Combine like terms: -1x2 + -0.12x2 = -1.12x2
13 + -1.12x2 = -0.3 + 0.12x2 + -0.12x2

Combine like terms: 0.12x2 + -0.12x2 = 0.00
13 + -1.12x2 = -0.3 + 0.00
13 + -1.12x2 = -0.3

Add '-13' to each side of the equation.
13 + -13 + -1.12x2 = -0.3 + -13

Combine like terms: 13 + -13 = 0
0 + -1.12x2 = -0.3 + -13
-1.12x2 = -0.3 + -13

Combine like terms: -0.3 + -13 = -13.3
-1.12x2 = -13.3

Divide each side by '-1.12'.
x2 = 11.875

Simplifying
x2 = 11.875

Take the square root of each side:
x = {-3.446012188, 3.446012188}

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