Question

Si 7a94-18b7=c46d
halla a+b+c+d

Answer 1

a = 2

b = 2

c = 5

d = 7

Suma: 16

Explicación paso a paso:

7a94 -

18b7

-------

c46d

14 -7 = d = 7

9 quitale 1 = 8 - b = 6

b=2

a - 8 = 4 a = 2 ya que 12-8= 4

7-1 = c quita 1 a 7 = 6

6-1= 5 = c