Respuesta :

zarampa

Answer:

b = 21/15

Step-by-step explanation:

0.6+15b+4=25.6

15b + 4.6 = 25.6

15b = 25.6 - 4.6

15b = 21

b = 21/15

Test:

0.6 + 15*21/15 + 4 = 25.6

06 + 21 + 4 = 25.6

genmad

Step-by-step explanation:

0.6+15b+4 = 25.6______eq.(I)

multiplying both sides by 10 we get,

10(0.6+15b+4) = 25.6*10

6+ 150b + 40 = 256

b. = (256 - 46)/150

= 210/150

= 7/5

b = 1.4

To test ,

Put. b= 1.4 in eq .(I)

0.6+ 15*1.4 +4 = 25.6

0.6+ 21 + 4. = 25.6

25.6 = 25.6