1. -6x + 8y = 362. 7x + 6y = 46y = 4 - 7xy = (4-7x)/6 Put this in the first equation and solve-6x + 8((4-7x)/6) = 36-36x + 8(4-7x) = 216 Multiply with 6 to simplify.-36x + 32 - 56x = 216-36x -56x = 216 - 32-92x = 184x = 184/-92x = -2X = - 2Now that you have X, put it in any of the equations above to solve Y.7x + 6y = 4 Put in x = -27(-2) + 6y = 4-14 + 6y = 46y = 4 + 14y = 18/6y = 3Y = 3
7x+7=28x 28x-7x=7 21x=7 x=3
7x - 4 = 60 7x = 64 x = 9.14
-7x + 5 = -9 -7x = -14 7x = 14 x = 2
If x=2, then 7x = 14 and if y=5 then 4y=20.
y=7x
-46 = 3x + 7x
(x,7x)
103
7x is still the slope, no matter what x equals.
7x + y = 8 Subtract 7x from each side of the equation: y = -7x + 8
40 -7x = -16 -7x = -16 -40 -7x = -56 x = 8