plz substitute the following equations
5x + 2y = 13 …. 1)
4x – 3y = 15 …. 2)​

Question

plz substitute the following equations
5x + 2y = 13 …. 1)
4x – 3y = 15 …. 2)​

in progress 0
Melanie 4 months 2021-07-19T00:09:55+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-07-19T00:11:35+00:00

    x= (13-2y)/5

    Or

    x= (15+3y)/4

    Or

    y= (13-5x)/2

    Or

    -y= (15-4x)/3

    0
    2021-07-19T00:11:38+00:00

    step1-___

    5x+2y-13=0

    4x-3y-15=0

    step2__

    take y’ coffecient and constant ,then x coffecient put them side by side and same y coffecient

    step3____

    x y 1

    2 -13 5 2

    -3 -15 4 -3

    step4___

    do cross multiply

    X/-30-39 ,Y/-52+75 , 1/-15-8

    X/-69, Y/23, 1/-23

    step 5____

    therefore,X= -69/-23

    Y=23/-23

    》》(x,y)=(3,-1)

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