Respuesta :

billph82

ANSWER:

LET THE NUMBER BE "X"

7x-12=5(x+2)

7x-12=5x+10

7x-5x=10+12

2x=22

x=22÷2

x=11
7x - 23 = 79
79 + 23 = 102
X = 102 divided by 7
X= 14.5714285714