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Simplifying
-4 = 5 + -1x2
Solving
-4 = 5 + -1x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add 'x2' to each side of the equation.
-4 + x2 = 5 + -1x2 + x2
Combine like terms: -1x2 + x2 = 0
-4 + x2 = 5 + 0
-4 + x2 = 5
Add '4' to each side of the equation.
-4 + 4 + x2 = 5 + 4
Combine like terms: -4 + 4 = 0
0 + x2 = 5 + 4
x2 = 5 + 4
Combine like terms: 5 + 4 = 9
x2 = 9
Simplifying
x2 = 9
Take the square root of each side:
x = {-3, 3}
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