112 3. Worksheet on
Systems of equations
Solve the system by substution
1. y
= 5x - 8
y
= 2x +4
2. 2x
+7y = 4
x
+ 3y = 1
3. 3x
+ 6y = 4
2y
+ x = 2
4. 3x + 6y = 9
2y
+ x = 3
5. 2s
- 9t = 22
8s
- 11t = 48
6. 12
m - 11n = 2
18
m + 7n = 3