Question

8x+14y=4. -6x-7y=-10

Answer 1

{  8 x + 14 y = 4        * ( 7 )
  -6 x - 7 y = - 10      * ( 14 )


  56 x + 98 y = 28
- 84 x - 98 y = -140
-------------------------
-28 x = -112

x = - 112 / - 28   * ( - 1 )

x = 112 / 28

x = 4

for y :

8 * ( 4 ) + 14 y = 4

32 + 14 y = 4

14 y = 32 - 4

14 y = 28

y = 28 / 14

y = 2


hope this helps!