Question

x/5=21/35 ? me ajudem

Answer 1

x/5 = 21/35

multiplica em cruz

35x = 21 . 5
35x = 105
x = 105/35
x = 3

Answer 2

   x\5=21\35           ( multiplicar cruzado)
    35x =105
     x=105\35
          S:{105\35}