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5x + 2 = 22 5x = 22 - 2 5x = 20 5x/5 = 20/5 x=4
For 5x+y=1, you would subtract 5x from each side, so you would get y=1-5x For 3x+2y=2, you would subtract 3x from each side, and then divide by 2. 2y=2-3x y=1-(3/2)x
(3)(2)(2)5x=60 12(5x)=60 12(5x)/12=60/12 5x=5 x=1
(x-3)(x-2)
To solve for x: x2 = 5x + 2 x2 - 5x = 2 x2 - 5x + (5/2)2 = 2 + (5/2)2 (x - 5/2)2 = 8/4 + 25/4 x - 5/2 = ± √(33/4) x = (5 ± √33) / 2