4y+4 = 2y+12 4y-2y = 12-4 2y = 8 y = 4
-2
Both of them are equations!The solution is (x, y) = (2, 1).
2x+y=-12-4x-2y=30 x=-y/2+30, you plug this into -12-4x-2y=30 and get -12+2y-120-2y=30 which gives 2y-2y=162. This is not possible, so the equation is unsolvable.
4
4y+4 = 2y+12 4y-2y = 12-4 2y = 8 y = 4
-2
Both of them are equations!The solution is (x, y) = (2, 1).
what is the slope of the line that has the equation 4x+2y=12?
2x+y=-12-4x-2y=30 x=-y/2+30, you plug this into -12-4x-2y=30 and get -12+2y-120-2y=30 which gives 2y-2y=162. This is not possible, so the equation is unsolvable.
-65
4
4y + 4 = 2y + 12Subtract 2y from each side of the equation:2y + 4 = 12Subtract 4 from each side:2y = 8Divide each side by 2:y = 4
(12, 1)
If 3y = 12, 2y = 8
3x + 2y = 12 ie 2y = 12 - 3x so y = 6 - 3x/2
x = -8, y = 10