toniivega1108 toniivega1108

24-05-2021
Mathematics

contestada

X-y=6, x+y=8, zx+zy=20

Respuesta :

bexruzerk3210 bexruzerk3210

24-05-2021

Answer:

Step-by-step explanation:

x = 6 + y

6 + y + y = 8

y = 1

x - 1 =6

x = 7

zx + zy = z(x + y) = 20

z = 2.5

Answer Link

mahdiyousefian mahdiyousefian

24-05-2021

Answer:

X = 7

Y = 1

Z = 2/5

Step-by-step explanation:

7-1 = 6

7+1 = 8

2/5 × 7 + 2/5 = 20

Answer Link

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