If 3x - y = -3 and x + 5y = 15, what is the value of y?

3 Answers

Kitty  M Profile
Kitty M answered
3
Fred Nickson Profile
Fred Nickson answered
X+5y=15  x=15-5y  3x-y=-3        3(15-5y) -y=-3      45-15y-y+3=0  48 -16y=0
48=16y    y=48    y=3
                  16
sam unknown Profile
sam unknown answered
3x-y=-3                                    x+5y=15
-y=-3-3x                                  x=15-5y
y=3+3x

by looking at these two equations, I'm guessing that x=0and y=3 because when you plug those integers into these equations, they both work out .

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