An algebraic expressions which is equivalent to the verbal statement “Three times the sum of x and y” is

(a)

3(x + y)

(b)

3 + x + y

(c)

3x + y

(d)

3 + xy

The numerical co-efficient of −7mn is

(a)

7

(b)

-7

(c)

p

(d)

-p

Choose the pair of like terms

(a)

7p, 7x

(b)

7r, 7x

(c)

−4x, 4

(d)

−4x, 7x

The value of 7a − 4b when a = 3, b = 2 is

(a)

21

(b)

13

(c)

8

(d)

32

The addition of 3mn, −5mn, 8mn and −4mn is

(a)

mn

(b)

-mn

(c)

2mn

(d)

3mn

When we subtract ‘a’ from ‘-a’, we get _______

(a)

0

(b)

2a

(c)

-2a

(d)

-a

In an expression, we can add or subtract only

(a)

Like terms

(b)

Unlike terms

(c)

All terms

(d)

None of the above

The generalization of the number pattern 3, 6, 9, 12,… is

(a)

n

(b)

2n

(c)

3n

(d)

4n

The solution of 3x + 5 = x + 9 is

(a)

2

(b)

3

(c)

5

(d)

4

The equation y + 1 = 0 is true only when y is

(a)

0

(b)

-1

(c)

1

(d)

-2