Answer:
Step-by-step explanation:
7x - 8y = 15.......(1)
-6y - 5y = -1.......(2)
Multiple (1)×5 & (2)×8
35x - 40y = 75..........(3)
-48x - 40y = -8..........(4)
Substracting (4) from (3)
35x +48x = 75 + 8
83x = 83
x = 83/83
x = 1
Putting x = 1 in (1)
7(1) - 8y = 15
7 - 8y = 15
-8y = 15 - 7
-8y = 8
y = -8/8
y = -1
