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Simplifying
3x2 + -7 = 12
Reorder the terms:
-7 + 3x2 = 12
Solving
-7 + 3x2 = 12
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 = 12 + 7
Combine like terms: -7 + 7 = 0
0 + 3x2 = 12 + 7
3x2 = 12 + 7
Combine like terms: 12 + 7 = 19
3x2 = 19
Divide each side by '3'.
x2 = 6.333333333
Simplifying
x2 = 6.333333333
Take the square root of each side:
x = {-2.516611478, 2.516611478}
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