Question

1.Tìm x:

35,5 : 5 - 2,5 : x = 15

làm giúp e nhé 

Answer 1

\(35,5-2,5:x=15\)

\(2,5:x=20,5\)

\(x=\frac{5}{41}\)

Answer 2

\(35,5:5-2,5:x=15\)

\(\Rightarrow7,1-2,5:x=15\)

\(\Rightarrow2,5:x=-7,9\)

\(\Rightarrow x=\frac{2,5}{-7,9}\)

Answer 3

\(35,5:5-2,5x=15\)

\(=>7,1-2,5x=15\)

\(=>2,5x=-7,9\)

\(=>x=\frac{2,5}{-7,9}\)