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katen-ka-za [31]

2 years ago

5

Y-4x=3. 2x-3y=21 can someone help

1 answer:

mars1129 [50]2 years ago

3 0

Y-4X =3 ; 2x-3y=21

Y= 3+ 4x

2x -3( 3+4x)= 21

2x- 9- 12x= 21

-10x -9= 21

-10x -9+9= 21+9

-10x = 30

X= 30/-10= -3

Y= 3+4x = 3+ 4* (-3)= 3-12= -9

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