Question

1. Define variable


2. What is the order of linear equation?


3. Solve: 2y + 15 = 5


4. Solve by adding and subtraction method to find the unknown

a) 2x + 5 = 30

b) 3z – 6 = 25


5. Using transposition method find the value of x

3

2

x + 5 =

21

2​

Answer 1

Answer:

the letters which doesn't have exact numerical value is called variable

Answer 2

Answer:

Q3 - answer

2y + 15 =5

2y = 5 - 15

2y = -10 Ans.

Step-by-step explanation:

Q4-answer

a) 2x + 5 = 30

2x = 30-5

2x = 25 Ans.

b) 3z - 6 = 25

3z = 25 + 6

3z = 31 Ans.