repede va rog dau coroana (pe amândouă)

52×4+a=459-48:8
208+a=459-6
208+a=453
a=453-208
a=245
Verificare:
208+245=453
453=453
b-24:8×3=18×9+6
b-3×3=18×9+6
b-9=162+6
b-9=168
b=168+9
b=177
Verificare:
177-9=162+6
168=168
Răspuns:
Explicație pas cu pas:
52x4+a= 459-48:8
208+a= 459-6
208+a= 453
a= 453-208
a= 245
-
b-24:8x3= 18x9+36:6
b-3x3=162+6
b-9=168
b= 168+9
b=177