Question

7x+8y=19 , -6x -8y=18

Answer 1

7x+8y=19

-6x -8y=18

--------------- Add both equations

x = 37

Using x = 37 in the first equation:

7(37)+8y=19

259+8y = 19

8y = 19 - 259

8y = -240

y = -240/8

y = -30