emmaarciprete emmaarciprete

22-04-2020
Mathematics

contestada

How many solutions does this system have?
X-y=-4
3x+y=8
O one
O two
O an infinite number
O no solution

Respuesta :

bridgethodgden3 bridgethodgden3

22-04-2020

Answer:

Infinite Number

Step-by-step explanation:

Answer Link

alyssanpitt20 alyssanpitt20

22-04-2020

There's only 1 answer. (1, 3.2)

Step-by-step explanation:

X-y=-4

3X+y=8

Y's cancel

4x=4

X=1

Substitute the 1 for X and solve

-4(1-y=-4)

3(1)+y=8

-4+4y=16

4+y=8

X's cancel

5y=16

Y=3.2

Answer Link

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