LINEAR EQUATIONS

1. Two brother bought together 10 books. One bought 4 books. How many books did the other brother buy?

2

4

5

6

2. Solve for x: 2x+4-34 = x+10-3x

25

12

10

4

3. Carina is 5 year older than marnie. Three years ago, she was twice as old as marnie. How old are they now?

Marnie = 8 Carina = 13

Marnie = 10 Carina = 15

Marnie = 20 Carina = 28

Marnie = 1 Carina = 5

4. How many liters of 60% ethyl solution should be added to 150L of a 35% ethyl solution to obtain a 50% ethyl solution?

175

225

350

135

5. Solve for x and y:

2x + y = 4
x - y = -1

X = 2, y = 1

X = 1, y = 2

X= 3, y= 4

X = 4, y = 3

Linear Equations