Question

3) 6n– 7n – 5m?n – 7n + 2m + 6mn - 7n + 2m + 6m?n

Answer 1

Answer:

1)-n-5m

2)-13n+10m+6mn

Step-by-step explanation:

1) (6n-7n)-5m= -n-5m

2)(n-7n-7n)+(2m+2m+6m)+6mn= -13n+10m+6mn