Respuesta :

Answer:

Step-by-step explanation:

a. 5x+15 = 5(x +3)

b. 7y-27 = 7(y- ([tex]\frac{27}{7}[/tex]))

c. 6a+54b-60r = 6(a + 9b - 10r)

A. 5(x+3)
B. 7(y-27/7)
C. 6(a+9b-10r)