Question

9=3a-9

make a the subject of the formula

Answer 1

The expression for a is : a = 6

Using the expression given :

• 9 = 3a - 9

To Make a the subject ;

Add 9 to both sides

9 + 9 = 3a - 9 + 9

18 = 3a

a = 18/3

a = 6

The value of a is 6