5x+1/7 -2x-6/4
5 x + 1 / 7 - 2 x - 6 / 4 =
3 x + 4 / 28 - 6 * 7 / 28 =
3 x + 4 / 28 - 42 / 28 =
3 x - 38 / 28 =
3 x - 2 * 19 / ( 2 * 14 ) =
3 x - 19 / 14
3 x + 4 / 28 - 6 * 7 / 28 =
3 x + 4 / 28 - 42 / 28 =
3 x - 38 / 28 =
3 x - 2 * 19 / ( 2 * 14 ) =
3 x - 19 / 14