3x^2+7=19

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Solution for 3x^2+7=19 equation: 


Simplifying
3x2 + 7 = 19

Reorder the terms:
7 + 3x2 = 19

Solving
7 + 3x2 = 19

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + 3x2 = 19 + -7

Combine like terms: 7 + -7 = 0
0 + 3x2 = 19 + -7
3x2 = 19 + -7

Combine like terms: 19 + -7 = 12
3x2 = 12

Divide each side by '3'.
x2 = 4

Simplifying
x2 = 4

Take the square root of each side:
x = {-2, 2}

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