Operations on Algebraic Expressions

On solving 2p-3q-4r+6r-2q+p

• a. 8q-5r

• b. 10p+3q-5r

• c. 3p-5q+2r

• d. 7p+5r

If -4x + 5y is subtracted from 3x + 2y then the answer will be

• 3x + 6y

• 2x + 5y

• x - 3y

• x + 3y

On solving the algebraic expression -38b/2, the answer will be

• -19b

• 19b

• 56b

• -56b

The product of 4 and -3b is

• 12b

• -12b

• 3b

• -3b

On evaluating the algebraic expression -3(4s-2t) - 4(2s+3t), the answer will be

• -20s - 6t

• -6s + 20t

• 21s - 7t

• 23s + 8t

If Ana is x years old then 5 times Ana’s age three years ago is

• 3(x-5)

• 5(x-3)

• 3(x+5)

• 5(x+3)

The sum of 5x + 3y and 4x – 2y is

• 5x - 8y

• 9x + y

• 8x + 4y

• 6x + 5y

The algebraic form of product of 7y and 4z is

• 11yz

• 3yz

• 11y + z

• 28yz

In the values 200x, the variable is

• 10

• 200

• x

• 10(20)

The algebraic form of the statement “sum of the product of 2a and 2b and product of 12x and 2y” is

• 4ab and 24xy

• 24ab + 4xy

• 4ab + 12x + 2y

• 2a + 2b + 24xy