Respuesta :

MckleeCc

Answer:

x=6

Step-by-step explanation:

x+y=48

x=y-6

substitute "y-6" instead of x

x+y=48

(y+6)+y=48

y+y is equal to y

6+y=48

-6     -6

y= 42

x= 48-y

x=48-42

x=6

I hope this helped

unicorn3125

Answer:

           21

Step-by-step explanation:

x  - the small number

x+6  - the big number

x + x + 6 = 48

2x + 6 = 48

  - 6       - 6

  2x  =  42

  ÷2       ÷2

    x = 21

Verifying:

x+6 = 21 + 6 = 27

21 + 27 = 48