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Simplifying
25 + -1x2 = 9 + x2
Solving
25 + -1x2 = 9 + x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-1x2' to each side of the equation.
25 + -1x2 + -1x2 = 9 + x2 + -1x2
Combine like terms: -1x2 + -1x2 = -2x2
25 + -2x2 = 9 + x2 + -1x2
Combine like terms: x2 + -1x2 = 0
25 + -2x2 = 9 + 0
25 + -2x2 = 9
Add '-25' to each side of the equation.
25 + -25 + -2x2 = 9 + -25
Combine like terms: 25 + -25 = 0
0 + -2x2 = 9 + -25
-2x2 = 9 + -25
Combine like terms: 9 + -25 = -16
-2x2 = -16
Divide each side by '-2'.
x2 = 8
Simplifying
x2 = 8
Take the square root of each side:
x = {-2.828427125, 2.828427125}
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