yes
5y + 7 = 25y = -5y = -1
you cant
5y + x = 0 subtract 5y from each side, then x = -5y
yes it is..your welcome
(9,3)
2x + 5y = 16 -2x - 3y = -14 2y = 2 y = 1 / x = 5.5 (5.5,1) or (5 1/2,1)
(-5, 2)
The Commutative Property of Addition.
3x + 5y = -1 2x - 5y = 16 Add the two equations: 5x = 15 or x = 3 Substitute for x in the first equation: 3*3 + 5y = -1 15 + 5y = -1 5y = -10 so y = -10/5 = -2 The solution is (x, y) = (3, -2)
x=(-5y-1)/3
x = 0 and y = 4
y=(-1) x=(2)