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Simplifying
7 = x2 + -3
Reorder the terms:
7 = -3 + x2
Solving
7 = -3 + 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.
7 + -1x2 = -3 + x2 + -1x2
Combine like terms: x2 + -1x2 = 0
7 + -1x2 = -3 + 0
7 + -1x2 = -3
Add '-7' to each side of the equation.
7 + -7 + -1x2 = -3 + -7
Combine like terms: 7 + -7 = 0
0 + -1x2 = -3 + -7
-1x2 = -3 + -7
Combine like terms: -3 + -7 = -10
-1x2 = -10
Divide each side by '-1'.
x2 = 10
Simplifying
x2 = 10
Take the square root of each side:
x = {-3.16227766, 3.16227766}
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