Question

8.x = 7,8 . x + 25

Answer 1

\(8x=7,8x+25\)

\(\Rightarrow8x-7,8x=25\Rightarrow0,2x=25\)

\(\Rightarrow x=25:0,2=125\)

Answer 2

\(8x=7,8x+25\)

\(8x-7,8x=25\)

\(0,2x=25\)

\(x=25:0,2\)

\(x=125\)

vậy \(\Rightarrow x=125\)

Answer 3

8.x = 7,8 . x + 25

=>8.x-7,8.x = 25

x.(8-7,8) = 25

x . 0,2 =25

x = 25:0.2

x =125