Question

if 8x-7y is equal to 11 and 7x-8 y is equal to 4, then what is the value of x + y? (A) 1 (B) 15 (C) 7 (D) 4​

Answer 1

Answer:

This is your answer hope it helps you

Answer 2

Answer:

8x - 7y = 11------- (1)

7x - 8y = 4---------(2)

Subtracting both the equations,

8x-7x - 7y-(8y) = 11-4

x - 7y + 8y = 7

x + y = 7 [c]