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Simplifying
9x2 + -12 + 4 = 17
Reorder the terms:
-12 + 4 + 9x2 = 17
Combine like terms: -12 + 4 = -8
-8 + 9x2 = 17
Solving
-8 + 9x2 = 17
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '8' to each side of the equation.
-8 + 8 + 9x2 = 17 + 8
Combine like terms: -8 + 8 = 0
0 + 9x2 = 17 + 8
9x2 = 17 + 8
Combine like terms: 17 + 8 = 25
9x2 = 25
Divide each side by '9'.
x2 = 2.777777778
Simplifying
x2 = 2.777777778
Take the square root of each side:
x = {-1.666666667, 1.666666667}
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