2x2-7x+3 = 0
(2x-1)(x-3) = 0
x = 1/2 or x = 3
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7x + y + 3 = y7x + 3 = 07x = -3x = -3/7
2x2 + 7x - 15 = 02x2 + 10x - 3x - 15 = 0(2x2 - 3x) + (10x - 15) = 0x(2x - 3) + 5(2x - 3) = 0(2x - 3)(x + 5) = 0(2x - 3) = 0 or (x + 5) = 0x = 3/2 or x = -5
7x + 4 = 2x + 5Subtract 4 from each side of the equation:7x = 2x + 1Subtract 2x from each side:5x = 1Divide each side by 5:x = 1/5 = 0.2
7x = 5+5x 7x-5x = 5 2x = 5 x = 2.5
x=6