Question

what is the simplified form of the expression 7m2+6.5n-4n+2.5m2-n

Answer 1

7m2+2.5m2= 9.5m2
6.5n-4n-n=1.5n

Answer 2

7m²+6.5n-4n+2.5m²-n
=4.5m²+1.5n
=1.5(3m²+n)
That's your answer.