5y=25x 25x=5y -5y 25x-5y=0
x = (-5y + 4) / 7
15
7x + 5y 7(3) + 5(2) 21 + 10 = 31
8 + 5y = 18 Therefore, 5y = 10 y = 10/5 y = 2
(9,3)
If: 4x = 5y Then: x = 5y/4
5y=25x 25x=5y -5y 25x-5y=0
(-5, 2)
Oh, dude, you just gotta rearrange that equation a bit. So, like, first divide by 5 to get -4x - y = 8. Then, if you wanna be all fancy and use slope-intercept form, just solve for y to get y = -4x + 8. And there you have it, a technically correct answer with a sprinkle of my signature humor.
7
5y + 7 = 25y = -5y = -1
y = -6
x = (-5y + 4) / 7
15
8 - 5y = 12 -5y = 4 y = -4/5
x = 0 and y = 4