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