X + 14x = 2082-4x = 382.5:12 = 1.5:x

X + 14x = 2082-4x = 382.5:12 = 1.5:x

（1）x+14x=20，           54x=20，        54x×45=20×45，             x=16；（2）82-4x=38，  82-4x+4x=38+4x，     82-38=38+4x-38，     44÷4=4x÷4，         x=11；（3）2.5：12=1.5：x，        2.5x=12×1.5，   2.5x÷2.5=18÷2.5，            x=7.2．

Chicken and rabbit in the same cage and a primary school mathematics problem (equation solution)
The best way to solve the problem is to talk about it
Chickens and rabbits in the same cage, a total of 20 heads, 58 legs?
If each child is given 4 pieces of chocolate, there are 18 pieces left; if each child is given 5 pieces, there are 20 pieces left. How many children are given chocolate?

There are x rabbits and (20-x) chickens
4x+2×（20-x）=58
4x+40-2x=58
4x-2x=58-40
2x=18
x=9
Chicken: 20-9 = 11
There are 11 chickens and 9 rabbits
Set up a kindergarten to share chocolate with X children
4x+18=5x-20
18+20=5x-4x
x=38
The kindergarten gives chocolate to 38 children

45%x=45 x+50%=3 80%-56%=48 x÷0.6=60%

What kind of teacher are you? I've been in high school. The teacher just mentioned it to us and said that I won't get it. I'm dizzy. What kind of teacher

There are two baskets of oranges, a total of 220kg. Take out 25% from basket a and 20% from basket B, a total of 50kg. How many jin each of basket a and basket B?
Please use an unknown number!

Let basket a have an orange x kg, then basket B has an orange (220-x) kg
By title
25%*x+20%*（220-x）=50
Namely
5%x=50-20%*220
Solution
X = 120 kg
So a basket of oranges 120 kg, B basket of oranges 100 kg