Question

\(1,2x+0,8x-5,2=10,8\)

Answer 1

\(1,2x+0,8x-5,2=10,8\)

\(\Leftrightarrow x.\left(1,2+0,8\right)-5,2=10,8\)

\(\Leftrightarrow x.2-5,2=10,8\)

\(\Leftrightarrow x.2=10,8+5,2\)

\(\Leftrightarrow x.2=16\)

\(\Leftrightarrow x=\frac{16}{2}=8\)

Answer 2

=>1,2x+0,8x=10,8+5,2

1,2x+0,8x=16

=>x.(1,2+0,8)=16

x.2=16

x=16:2

x=8