1 x-x = 11, solve the equation
Original formula = 2.1 X-1 x = 11
1.1X=11
X=11/1.1
X=10
Solving equation x + 7 / 2 = 1 / 5 x + 11.5
X + 7 / 2 = 1 / 5 x + 11.5
x-x/5=11.5-3.5
0.8x=8
x=10
X + 1 / 7 = 3 / 14
X + 1 / 7 = 3 / 14
X = 3 / 14-1 / 7
X = 1 / 14
5 out of 7 × x 1 out of 14 = 1 out of 3 solve the equation and write out the process,
5 / 7 × x 1 / 14 = 1 / 3
5 / 7 × 1 / 14 × x = 1 / 3
5 / 98 × x = 1 / 3
X = 1 / 3 × 98 △ 5
X = 98 / 15