Question

Subtract:- x + y+ 1 from the sum of x + 2y - 6 and 3x - 4y + 9​

Answer 1

3x-3y+14

Step-by-step explanation:

=x+2y-6+3x-4y+9-(x+y+1)

=(x+3x)+(2y-4y)+(6+9)-(x+y+1)

=4x-2y+15-(x+y+1)

=4x-2y+15-x-y-1

=(4x-x)-(2y-y)+(15-1)

=3x-3y+14

Answer 2

Step-by-step explanation:

3x-3y+2 . it is the correct ans