Respuesta :

imanyasin

Answer:

a=25

Step-by-step explanation:

a=3x7+4

a=21+4

=25

gfelix23
Answer: A= to 25

Solution: a= 3b + 4 and b= 7 so you plug in the numbers —> 3(7) +4 = a so 3 x 7 = 21 +4 = 25 !