sqrt(1+x)+sqrt(1-x)=2

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Solution for sqrt(1+x)+sqrt(1-x)=2 equation: 


Simplifying
sqrt(1 + x) + sqrt(1 + -1x) = 2
(1 * qrst + x * qrst) + sqrt(1 + -1x) = 2
(1qrst + qrstx) + sqrt(1 + -1x) = 2
1qrst + qrstx + (1 * qrst + -1x * qrst) = 2
1qrst + qrstx + (1qrst + -1qrstx) = 2

Reorder the terms:
1qrst + 1qrst + qrstx + -1qrstx = 2

Combine like terms: 1qrst + 1qrst = 2qrst
2qrst + qrstx + -1qrstx = 2

Combine like terms: qrstx + -1qrstx = 0
2qrst + 0 = 2
2qrst = 2

Solving
2qrst = 2

Solving for variable 'q'.

Move all terms containing q to the left, all other terms to the right.

Divide each side by '2rst'.
q = r-1s-1t-1

Simplifying
q = r-1s-1t-1

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