Question

4m=9m-20 equals what

Answer 1

4m=9m-20
0=5m-20 (subtract 4m to both sides)
5m=20 (add 20 to both sides)
m=4 (divide by 5 to both sides)

Answer 2

4m=9m-20

You need to get "m" all on one side.

Take -9m from each side

-5m=-20

Divide -20 by -5m

-20÷-5=4

m=4