Question

Tìm x:
8x = 7,8 . x +25

Answer 1

\(8x-7.8x=25\)

\(0.2x=25\)

\(x=25:0.2\)

\(x=25\times5\)

\(x=125\)

Answer 2

\(8x=7,8.x+25\\ 8x-7,8=25\\ 0,2x=25\\ \dfrac{1}{5}x=25\\ x=25:\dfrac{1}{5}\\ x=125\)

Answer 3

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

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

\(0,2x=25\)

\(x=125\)