7x + y + 3 = y
7x + 3 = 0
7x = -3
x = -3/7
Chat with our AI personalities
2x2-7x+3 = 0 (2x-1)(x-3) = 0 x = 1/2 or x = 3
7x = 3 x = 3/7
7x-3=3x+8 7x-3x=8+3 4x=11 x=11/4=2.75
7x + 8 = 10x - 2 ∴ 3x = 10 ∴ x = 10/3
(1) 5x+y=-12 (2) 7x-3y=-30 From (1) one gets y = -12-5x Put into (2) 7x-3y = 7x -3 (-12-5x) = 7x + 36 +15 x = 22x +36=-30 22x = -30-36 = -66 so x = -3 and y=-12-5x = -12-5x-3= 3 The solution is (-3,3)