4x + y = 9 so that y = 9 - 4x 7x - 8y = 6 7x - 8*(9-4x) = 6 7x - 72 + 32x = 6 39x = 78 x = 2 Then y = 9 - 4x = 9-4*2 = 9-8 = 1
8y-7x
4x+8y=-24
Y- intercept of 4x+8y=16
134
4x + y = 9 so that y = 9 - 4x 7x - 8y = 6 7x - 8*(9-4x) = 6 7x - 72 + 32x = 6 39x = 78 x = 2 Then y = 9 - 4x = 9-4*2 = 9-8 = 1
8y-7x
4x+8y=-24
Y- intercept of 4x+8y=16
134
16
(0,2)
Solve for Y algebraically. 4X + 8Y = 16 8Y = - 4X + 16 Y = - 1/2X + 2 graph and see that the Y intercept = 2
9x plus 8y
(5,3)
73474949444999272725678251628909813.345267777777776663
36..thats very simple..lol