Respuesta :
Answer:
x = 40
Step-by-step explanation:
9/10 + 4/x = 1
=> 4/x = 1 - 9/10
=> 4/x = 1/10
=> 1/10 = 4/x
=> x = 4(10)
=> x = 40
Answer:
x = 40
Step-by-step explanation:
9/10 + 4/x = 1
=> 4/x = 1 - 9/10
=> 4/x = 1/10
=> 1/10 = 4/x
=> x = 4(10)
=> x = 40