Question

elimination x+y=3, 2x+y=-2​

Answer 1

Answer:

here's ur answer

multiply 2 in equation 1

2x+2y=6

-2x-y=2(when subtracted the sign change)

y=8

put in first equation

x=3-8

x= -5

therefore x= -5, y=8

Hope it helps you

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Answer 2

Given,

x+y=3 and .....equ(1)

2x+y=-2 .....equ (2)

multiply 2 on equ(1)

» 2x +2y = 6 ....equ( 3)

-2x - y = 2 [multiply -1 to equ(2)]

» y = 8

and x+8 = 3

x = -5

The values of X and y are - 5 and 8 respectively