Algebra

Q.1: Give expressions in the following cases:

a) 10 added to p

b) 5 multiplied by q

c) 8 subtracted from z

d) k added to 27

e) f divided by 6

f) 6 times z added to 6

g) j is multiplied by 6 and the result is then subtracted from 18

h) 13 added to 3m

Q.2: Which of the following are equations?

a) 2m – 3 = 7

b) 8 + 3 = 11

c) g – 5 > 3

d) 24/5 + m

e) 2k + 5 = 25

Q.3: Pick out the solutions from the values given in the bracket next to each equation. Show that the other values do not satisfy the equation.

a) 3p = 21 ( 8, 9, 10, 7 )

b) 4 + l = 16 ( 10, 15, 20, 12 )

c) t/5 = 4 ( 21, 25, 20, 30 )

d) h – 6 = 21 ( 28, 5, 27, 23 )

e) 9x = 90 ( 100, 90, 80, 70 )

Q.4: Which of the following expressions are with numbers only?

a) 8 – 3

b) z + 3 = 8

c) 8 x 3 + 5

d) ( 5 – 3 ) x 8

e) 6 – 7x

Q.5: Identify the operations ( addition, subtraction, multiplication, division ) used in forming the following expressions:

a) d + 8

b) 8g

c) 9 – d

d) r/3

e) 10t