X + 2y = 1 ______×1
4x + y = 11 _____ ×2
x + 2y = 1
8x + 2y = 22
8x + 2y = 22
(-)
x + 2y = 1
_____________
7x = 21
x = 3
3 + 2y = 1
2y = 2
y = 1
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1. 30.25
2. 81
3. Square Root of 2 plus 1, Negative Square Root of 2 plus 1.
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5. Square Root of 53.25 minus 11, Negative Square root of 53.25 minus 11