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Simplifying
9x2 + -9 = 39
Reorder the terms:
-9 + 9x2 = 39
Solving
-9 + 9x2 = 39
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '9' to each side of the equation.
-9 + 9 + 9x2 = 39 + 9
Combine like terms: -9 + 9 = 0
0 + 9x2 = 39 + 9
9x2 = 39 + 9
Combine like terms: 39 + 9 = 48
9x2 = 48
Divide each side by '9'.
x2 = 5.333333333
Simplifying
x2 = 5.333333333
Take the square root of each side:
x = {-2.309401077, 2.309401077}
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