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Simplifying
64 = 100 + -1x2
Solving
64 = 100 + -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.
64 + x2 = 100 + -1x2 + x2
Combine like terms: -1x2 + x2 = 0
64 + x2 = 100 + 0
64 + x2 = 100
Add '-64' to each side of the equation.
64 + -64 + x2 = 100 + -64
Combine like terms: 64 + -64 = 0
0 + x2 = 100 + -64
x2 = 100 + -64
Combine like terms: 100 + -64 = 36
x2 = 36
Simplifying
x2 = 36
Take the square root of each side:
x = {-6, 6}
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