Find the value of x + y for the given equation: 9x + 11y = 78, 11x + 9y = 82
Answers
Answered by
0
Answer:
Step-by-step explanation:
9x + 11y = 78
11x + 9y = 82
- - -
__________
-2x + 2y = -10
-x + y = -5
Answered by
2
Step-by-step explanation:
your problem solved in above photo
answer ( x , y ) = ( 5 , 3 )
Attachments:
Similar questions