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Simplifying
-1x2 + 22 = 15
Reorder the terms:
22 + -1x2 = 15
Solving
22 + -1x2 = 15
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-22' to each side of the equation.
22 + -22 + -1x2 = 15 + -22
Combine like terms: 22 + -22 = 0
0 + -1x2 = 15 + -22
-1x2 = 15 + -22
Combine like terms: 15 + -22 = -7
-1x2 = -7
Divide each side by '-1'.
x2 = 7
Simplifying
x2 = 7
Take the square root of each side:
x = {-2.645751311, 2.645751311}
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