Question

Add: -4x + 9y -- 3xy ; 2x – 5y - 7xy and -- 4x + 3y-- 6xy​

Answer 1

Answer:

-6x+7y-16xy

Step-by-step explanation:

$- 4x + 9y - 3xy + 2x - 5y - 7xy + - 4x + 3y - 6xy \\ \\ ( - 4 + 2 - 4)x + (9 - 5 + 3)y + ( - 3 - 7 - 6)xy \\ - 6x + 7y - 16xy$

Answer 2

Step-by-step explanation:

=4x+9y+3xy+2x-5y-7xy-4x+3y+6xy

=4x+2x-4x+9y-5y+3y+3xy-7xy+6xy

=2x+12y-5y+9xy-7xy

=2x+7y+2xy

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