Question

Help me plzzzzzz........

Answer 1

Answer:

Step 1 was the first mistake

Step-by-step explanation:

7a = 28

7a/7 = 28/7

a = 4

Answer 2

Answer:

Step 1

Step-by-step explanation:

You should isolate the variable, not try to get rid of it. Also, you have to divide both sides by the same number or variable(can't divide one side by a and the other side by 7- it has to be the same).