Respuesta :
VC + CW = VW
Z + 13 + Z +8 = 61
2Z + 21 = 61
2Z +21 -21 = 61 - 21
2Z = 40
2Z/2 = 40/2
Z = 20
Check
20 + 13 + 20 + 8 =61
61 = 61
Z + 13 + Z +8 = 61
2Z + 21 = 61
2Z +21 -21 = 61 - 21
2Z = 40
2Z/2 = 40/2
Z = 20
Check
20 + 13 + 20 + 8 =61
61 = 61