Question

(a) 3xy, - 6xy, 18xy?​

Answer 1

Answer:

$your \: answer \: is \: 15xy$

Step-by-step explanation:

Addition :-

$3xy + ( - 6xy) + 18xy$

$= 3xy - 6xy + 18xy$

$= (- 3xy )+ 18xy$

$=15xy$

HOPE IT'S CORRECT

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Answer 2

Answer:

Step-by-step explanation: