Question

3x + 7y = 105 and 9x - 2y = 108​

Answer 1

9x + 2y = 108

-9x - 21 y = 315

- 23y = 207

...y = -9

3x + 7y = 105

3x - 63 = 105

3x = 168

x. = 168/3

x = 56

Hense,

..... X= 56

Y= 9. Ans.