The price of a suit is 129 yuan. How much are the coats and trousers of this suit? A coat is more expensive than trousers, 29 yuan. How to solve it with equations? There is the same amount.
Solution:
Equivalence relation:
Clothes+pants = 129
Clothes-pants =29
Let pants be X yuan and clothes be (x+29).
x+x+29= 129
2x= 129-29
x= 100÷2
x=50
x+29=50+29=79
A: