janett08 janett08

26-01-2020
Mathematics

contestada

please help, thanks!!

please help thanks class=

Respuesta :

jessica0111 jessica0111

26-01-2020

Answer:

x= -3 and y = 6.8

Step-by-step explanation:

-4.2+y=19.4

y=4.2x+19.4

4.2x+8y=41.8

4.2x+8(4.2x+19.4)=41.8

37.8x+155.2=41.8

37.8x=-113.4

x=-113.4/37.8

x=-3

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