Plz answer quickly, I need to get this done soon. I will mark Brainliest.

Justify each step in solving the equation 4x=7(x-3) by writing a reason for each statement.


Statement Reason
1. 4x=7(x-3) 1. Given
2. 4x=7x-21 2.?
3. -3x=-21 3.?
4. x=7 4. ?

Fill in the blanks.