60÷x=60÷(2/3x)—2 어떻게 계산 합 니까?

60÷x=60÷(2/3x)—2 어떻게 계산 합 니까?

60÷x=60÷(2/3x)—2
60/x=90/x-2
90/x-60/x=2
30/x=2
x=30÷2
x=15