Question

I don’t understand how to do this.

Answer 1

Answer:

-9 = 0.45m

Step-by-step explanation:

0.45m -9 = 0.9m

-0.45m      -0.45m

-9 = 0.45m

Answer 2

Answer:

-9 = 0.45m

Step-by-step explanation:

0.45m - 9 = 0.9m

combine the like terms

-9 = 0.9m - 0.45m

-9 = 0.45m