Question

(3) 2r - 3y = 9; 2x + y = 13​

Answer 1

Answer:

2x−3y=9 ...(1)

2x+y=13 ...(2)

Subtracting equation (1) for (2), we get,

4y=4

y=1

Therefore, x=6.

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

2r = 9+3y

r= 9+3y/2

then putting the value of x in 2nd equation

2r+y = 13

2×9+3y/2 + y = 13

9+3y+y = 13

9+4y = 13

4y = 13 - 9

4y = 4

y = 4/4

y = 1

.......now in equation 2nd

2x + y = 13

now putting y=1

2x + 1 = 13

2x = 13 - 1

2x = 12

x = 12/2

x = 6

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