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)
This is Simultaneous equ'ns. 3x + 5y = -1 2x -5y = 16 Add the two eq'ns. This will eliminate 'y' Hence 5x = 15 x = 3 When x = 3 , substitute into either eq'n to yimnd 'y'. Hence 3)3) + 5y = -1 9 + 5y = -1 5y = -10 y = -10/5 = -2 So the solution in ( x,y) form is ( 3, -2).
(-5, 2)
The Commutative Property of Addition.
x=(-5y-1)/3
x = 0 and y = 4
x = 3, y = 3