Respuesta :

Answer:

[tex]a = \frac{3c - 9b }{10} [/tex]

Step-by-step 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.

[tex]a = \frac{3c - 9b }{10} [/tex]

So that's how you do it.

Answer:

To make a subject of the formula

Step-by-step 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