Samabdelmajid23 Samabdelmajid23

13-04-2020
Mathematics

contestada

53 - 9y = 1
-7.2 + 2y = -5

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Respuesta :

Larrysammz Larrysammz

13-04-2020

Answer:

1.1, -5

Step-by-step explanation:

53 - 9y = 1

from equation i

53-9y = 1

-9y= 1-53 = -52

y = -52/-9= 52/9 = 5⁷/₉

-7.2 + 2y = -5

add 7.2 to both sides

2y= -5+7.2 = 2.2

y= 2.2/2 = 1.1

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