Question

Make a the subject of the formula:
10a + 9b = 3c

Answer 1

To make a subject of the formula

Explanation:

first you subject 9b both sides which you will have

10a=3c-9b

then divide by 10 both sides

a=3c-9b/10

a=3c-9b/10 this is the answer

Answer 2

`a = (3c - 9b )/(10)`

Explanation:

10a + 9b = 3c

Subtract 9b to isolate the variable a.

10a = 3c - 9b

Now we need a singular a, so divide equation by 10.

`a = (3c - 9b )/(10)`

So that's how you do it.