Respuesta :

Answer:

a=15

Explanation:

5a−10b=45 , when b=3

Substitute the value of b into the equation.

5a−10(3)=45

Solve for a.

5a−10(3)=45

5a−30=45

5a=75

a=15





What is the value of a in the equation 5a – 10b = 45, when b = 3?


3

15

21

39


Ver imagen taraa3012