Question

(iv) 3x - 5y = 4
9x - 2y = 7.​

Answer 1

Answer:

(231/117, 15/39)

Step-by-step explanation:

Eq.1)= 3x-5y= 4

Eq.2)= 9x-2y= 7

Eq.1*9= 27x-45y= 36

Eq.2*3= 27x-6y= 21

Eq.1*9-Eq.2*3= 6y-45y= 21-36

-39y= -15

y= 15/39

Put y value in Eq.1

3x-5(15/39)= 4

3x-75/39= 4

3x= 4+75/39

3x= 231/39

x= 231/117

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