-1
y = 4/5
y = -2/5
If X+Y=5;X=4, then x=4 and y=1
(y-5)/4 = 7 y-5 = 28 y = 33
2x-y=5, y=2x-5 4x+y=4, y=4-4x 2x-5=4-4x 6x=9 x=3/2 y= 2(3/2)-5 y=-2
y=4 x+y=5 so it wud be:::::: x+4=5 solve it from there by doing 1 step equation :)
-1
(3, 2)
x = -5/3 y = -4/3
y=2x-4 y=2x-5 y=1 1=2x-4 -2x = -5 x=2/5 the solution is (x,y) = (2/5,1)
x=4 y=5 9x+7y=?? Replace: 9(4)+7(5)= 71