Question

5x+7y=49,7x+5y=77 .solve it using elimination method ​

Answer 1

Step-by-step explanation:

5x+7y=47 1

7x+5y=77 2

by adding them,

8x +8y =124

x + y = 15 (dividing by 15)

5x+7y=47

7x+5y=77

by subtracting them,

2x+2y=77

x+y=38 (dividing by 38

x+y=15

x+y=38

adding them

2x +2y=53

Answer 2

Answer:

Answer is in the attachment.

Step-by-step explanation:

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