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solve the following system of equations -5x-2y=-14 and -7x+3y=21

Sagot :

princechimezirim096

Answer:

X= 0 Y = 7.5

Step-by-step explanation:

-5 X-2 Y = -14----------(1) ×3

-7 X+3 Y= 21----------(2) ×2

-15X - 6Y = -42---------(4)

-14X + 6Y= 42----------(5)

subtracting we're got

- X = 0

counciling out the negative signs

X = 0

put X into equation (1)

-5(0) -2Y = -14

0 - 2Y = -15

-2Y = -15

Y = 15/2

Y = 7.5

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