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Simplifying
3x2 + -15 = 34
Reorder the terms:
-15 + 3x2 = 34
Solving
-15 + 3x2 = 34
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '15' to each side of the equation.
-15 + 15 + 3x2 = 34 + 15
Combine like terms: -15 + 15 = 0
0 + 3x2 = 34 + 15
3x2 = 34 + 15
Combine like terms: 34 + 15 = 49
3x2 = 49
Divide each side by '3'.
x2 = 16.33333333
Simplifying
x2 = 16.33333333
Take the square root of each side:
x = {-4.041451884, 4.041451884}
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