Question

Si 120=5X+10Z y 10X+10Z=180, podemos decir que: *
5X=60
5Z=60
X=60
Z=60

Answer 1

Respuesta:

5X = 60

10Z = 60

X = 12

Z = 6

120 = 5X + 10Z

120 = 60 + 10Z

60 = 10Z

60/10 =Z

6 = Z

10X + 10Z = 180

10X + 60 = 180

10X = 120

X = 120/10

X = 12