Math, asked by piyushprince098, 1 month ago

What must be added to 7x - 6y + 15 to get a sum equal to sum of x + 9y - 1 and - 9x+8y - 11?​

Answers

Answered by kookietaelicious
1

Step-by-step explanation:

Let the number to be added be a

7x-6y+15+a=x+9y-1-9x+8y-11

a=x+9y-1-9x+8y-11-7x+6y-15

=-15x+23y-27

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