anari98 anari98

16-04-2020
Mathematics

contestada

I need help pls ASAP

I need help pls ASAP class=

Respuesta :

Аноним Аноним

16-04-2020

Answer:

D. ( 1.9 , -3.7)

Step-by-step explanation:

Given

x + y = - 1.8.......equation 1

y = 2x - 7.5 .......equation 2

putting equation 2 in equation 1

x + 2x - 7.5 = -1.8

3x = - 1.8 + 7.5

3x = 5.7

x = 5.7 / 3

x = 1.9

Now

y = 2* 1.9 - 7.5

= 3.8 - 7.5

= -3.7

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