Solve the simultaneous equations 5x + y = 21
x - 3y = 9

x =
y =

x=9/2

y= -3/2

Step-by-step explanation:

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5x+y=21equation 1

x-3y=9equation 2

from1:y=21-5xequation 3

substitute y by 21-5x in equation 2

x-3(21-5x)=9

x-63+15x=9

x+15x=9+63

16x=72(we divide both sides by 16)

16÷16=72÷16

therefore x=9/2 or x=4,5

substitute x by 4,5 or 9/2 in equation 3

y=21-5(9/2) or y=21-5(4,5)

y=-3/2 or y=-3/2

prove

5(9/2)-3/2=21

-3/2-3(9/2)=9

well my understanding of this question is they want you to use the y=14.1x -2.3 and put the coordinates they gave you onto the line segment of   y=14.1x -2.3

step-by-step explanation:

the  office resources  are the human, physical and financial  resources  which are utilized for performing all the activities in order to achieve the organizational objectives.

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