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Simplifying
3x2 + -2 = 77
Reorder the terms:
-2 + 3x2 = 77
Solving
-2 + 3x2 = 77
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '2' to each side of the equation.
-2 + 2 + 3x2 = 77 + 2
Combine like terms: -2 + 2 = 0
0 + 3x2 = 77 + 2
3x2 = 77 + 2
Combine like terms: 77 + 2 = 79
3x2 = 79
Divide each side by '3'.
x2 = 26.33333333
Simplifying
x2 = 26.33333333
Take the square root of each side:
x = {-5.131601439, 5.131601439}
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