Respuesta :

Answer: a=5

Step-by-step explanation:

3a+2a=5a

5a=25

divide both sides by 5 to get a alone

a=5

Answer:

5

Step-by-step explanation:

3a+2a=25

5a=25

/5 /5

a=5

check:

3*5=15

2*5=10

10+15=25