✔ 最佳答案
Hi I am marcoleongk89 , today I am going to help you solve the equation
I am a form2 student too
2.5/2.5+x = 3.5/14
35 = 3.5(2.5+x)
35 = 8.75 +3.5x
26.25 = 3.5x
x = 7.5
參考: You can buy a book call The Essential Of school Algebra,there are many examples inside it