Respuesta :

Answer:

15

Step-by-step explanation:

5a-10b=45

5a-10.3=45

5a=75

a=15

Answer:

a=15

Step-by-step explanation:

[tex]5a-10b=45[/tex] is the given equation

The value of b is 3, replace the variable b by 3

[tex]5a-10b=45[/tex]

[tex]5a-10(3)=45[/tex]

[tex]5a-30=45[/tex]

To solve for 'a' , add 30 on both sides

[tex]5a=75[/tex]

Divide both sides by 5 to get rid of 5

a= 15

the value of a= 15