Question

can some one help me i have no idea what this is

Answer 1

Answer:

b=-25

Step-by-step explanation:

10= -2/5b

10=      -2/5b

------    -------

-2/5       -2/5b

b=-25

Check:

-2/5(-25)=10

10=10

Answer 2

Answer:

b=-25

Step-by-step explanation: