Respuesta :
Answer:
If 2a=5 then 3a=7.5
Step-by-step explanation:
Start by simplifying the equation 2a=5.
Divide 2a by 2 and 5 by 2, therefore, a will equal 2.5. then plug a into the second equation and solve 3(2.5). The answer should be 7.5, therefore 3a=7.5
