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3x + 16 = 22 3x = 6 x = 6/3 x = 2
2.75 x 8 = 22 or 8 x 2 = 16 3/4 x 8 = 24/4 = 6 16 + 6 = 22
x2 + 8x - 6 = 0 x2 + 8x + 16 = 22 (x + 4)2 = 22 x + 4 = ± √22 x = -4 ± √22
If you mean (1) y + 3x = 22 and (2) y + 2x = 16, then (1) y = 22 - 3x (sub this into (2)) (2) (22 - 3x) + 2x = 16 -x = -6 x = 6 y = 22 - 3x = 22 -3(6) = 4 solution: (6,4)
22% of 16= 22% * 16= 0.22 * 16= 3.52