Question

tim x biet x.3+5.x=16

Answer 1

\(x.3+5.x=16\)

\(\Rightarrow x.\left(3+5\right)=16\)

\(\Rightarrow x.8=16\)

\(\Rightarrow x=\frac{16}{8}\)

\(\Rightarrow x=2\)

vậy \(x=2\)

Answer 2

\(x.3+5.x=16\)

\(\left(3+5\right).x=16\)

\(8.x16\)

\(x=16:8\)

\(x=2\)

Answer 3

X x 3 + 5 x X = 16

X x ( 3 + 5 )   = 16

X x 8             = 16

                  X = 16 : 8

                  X = 2