1) if 7x-6y = 15 and 6x - 7y = 10 then
find the value of x + y.
Answers
Answered by
2
Answer:
5
Step-by-step explanation:
7x - 6y = 15 --- (eqn 1)
6x -7y = 10 ---- (eqn 2)
Eqn 1 - Eqn 2
Therefore,
7x - 6y - (6x -7y) = 15 - 10
7x - 6x - 6y + 7y = 5
x + y = 5
Similar questions