X+3X= 180
4X= 180
X= 180÷4
X=45
3X=45×3= 135
Answer 45 peach trees and 135 apricot trees.
(2) Solution: Let the peach tree be X, then the number of apricot trees can be expressed as 3X.
3X minus X=90.
2X=90
X =90÷2
X =45
3X=45×3= 135
A: There are 45 peach trees and 35 apricot trees/kloc-0.
Sorry, the minus sign can't be typed. )
Thank you.