The process of solving equation 15 / X-15 / 1.5x = 15 / 60

The process of solving equation 15 / X-15 / 1.5x = 15 / 60

15/x-15/1.5x=15/60
Then 15 / X-10 / x = 1 / 4
Then (15-10) / x = 1 / 4
Then 5 / x = 1 / 4
Then x = 20
Test: substitute x = 20 into the original equation, left = right
So x = 20 is the solution of the original equation

5x + 5 (x + 5) = 600 (x / 50) - 3 = (x / 60) + 2 solution equation
5x+5（x+5）=600 （x/50)-3=(x/60)+2
Solving equation / Yes Division
To write carefully, the more careful, the more points!

5x+5（x+5）=600
5x+5x+25=600
5x+5x=600-25
10x=575
x=57.5
（x/50)-3=(x/60)+2
（x/50)-(x/60)=3+2
x/300=5
x=1500

3 / 5x-1.5 = 6 x + 40% x = 3.5

3/5X-1.5=6 x+40%x=3.5
3/5X=7.5 1.4x=3.5
x=12.5 x=2.5

A simple method of multiplying 35 by 24

35×24
=5×4×7×6
=20×42
=840;
If you don't understand this question, you can ask,

25 - [(3 / 20-4) + (17 and 3 / 4-17)]=
The score is a little difficult to play, please understand

25 - {(3 / 20-4) + 3 / 4} = 25-20 = 5

How can 13 - {26 - (- 21) + (- 18)} be written as the sum of the plus sign omitted

Original formula = 13 - (26 + 21-18)
=13-26-21+18
=(13+18)-(26+21)
=31-47
=-16

What is the quotient of the product of 3 / 9 divided by 5 / 9 and 25 / 18

3/9÷(5/9x25/18)

2 and 2 out of 9 = 18? = how much 80
Talking about the process and result

2 and 2 out of 9 = 40 out of 18 = 80 out of 36

The simplest score is 81 out of 18, 28 out of 35, 26 out of 52, 21 out of 36 and 42 out of 45

2/9
5/4
two
12/7
15/14

Turn 28 out of 35, 161 out of 399, 105 out of 500, 13 out of 52, 27 out of 81, 35 out of 100, 45 out of 120 into the simplest score. How fast~

5/4, 57/23, 100/21, 4, 3, 20/7, 8/3,