Math, asked by correctanswer29, 5 months ago

i) 2x + y = 11 and 7x + 8y = 7 Then find x + y

Answers

Answered by alifeezan228

2

Answer:

61 what is the un b ean 252

Answered by sreejasujan1976

1

Answer:

x+y= 9

Step-by-step explanation:

2x+y=11. (1)

7x+8y=7. (2)

(1)+(2)..2x+7x+y+8y=11+7

9x+9y=18

9(x+y)=18

x+y = 18/2

x+y= 9

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