Solution:
y=2/3x ①
2x+8y=22 ②
By (1), have to:
y-2/3x=0 ③
③×8, so:
8y- 16/3x=0 ④
②-④, so:
22/3x=22
x=3
Substitute x=3 into ①, and you get
y=2/3x=2
The solution of this binary linear equation system is: x=3, y=2.
3x+y=7 ①
5x-2y=8 ②
①×2, get
6x+2y= 14 ③
②+③, get
1 1x=22
x=2
Substitute x=2 into ①, and you get
3×2+y=7
y= 1
The solution of this binary linear equation system is: x=2, y= 1.
2x+3y=5 ①
4x-y=3 ②
①×2, get
4x+6y= 10 ③
③-②, yes
7y=7
y= 1
Substitute y= 1 into ① to obtain
2x+3× 1=5
x= 1
∴ The solution of this binary linear equation system is: x= 1, y= 1.
3x-2y=4 ①
5x+3y- 13=0 ②
①×3, get
9x-6y= 12 ③
②×2, get
10x+6y-26=0 ④
③+④, get
19x=38
x=2
Substitute x=2 into ①, and you get
3×2-2y=4
y= 1
The solution of this binary linear equation system is: x=2, y= 1.