Question

x phần 7 = x+16 phần 35

Answer 1

\(\frac{x}{7}=\frac{x+16}{35}\)

<=> 7(x+16)=35x

=> x+16 = 5x

=>16 = 5x - x = 4x

=> x = 16 : 4

=> x = 4

Answer 2

\(\Rightarrow x-\frac{x}{7}=\frac{16}{35}\)

\(\Rightarrow\frac{35x}{35}-\frac{5x}{35}=\frac{16}{35}\)

=> 35x - 5x = 16

=> x.(35 - 5) = 16

=> x.30 = 16

=> x = 16 : 30

=> x = \(\frac{8}{15}\)