Log in to add a comment

## Answers

7x - 8y =11 *8

8x -7y = 7 *7

56x -64y =88

56x -49y =49

-15y = 39

y = -39/15

i am substituting this in 7x - 8y = 11

7x -8 * -39/5 = 11

7x + 312/5 = 11

35x +312

__÷5 = 11__

35x = 55-312

35x = 257

x = 257/35

hence solved