Algebraic Expressions

Algebra Worksheet-7

1. Number to be added on LHS of equation to find the value of ‘y’ is (elimination method) y – 8 = 6

(a) –8                 (b) 14                  (c) 0                    (d) –6

2. To get the value of p, ______ is to be multiplied on either side of equation (method of elimination)

(a) –4                 (b) 4                    (c) 1                     (d) 0

Algebra Worksheet-8

1. Algebraic expression for the statement: 6 times a taken away from 40.

(a) 6a – 40        (b) 40a – 6        (c) 40 – 6a        (d) 0

2. ‘6 less than ten times a’ is written as

(a) 6 – 10a         (b) 10a – 6        (c) 10ac              (d) 6 < 10 × a – 6

Algebra Worksheet-9

1. Write as an algebraic expression.

The sum of y and 10 is 3 more than n.

(a) (y + 10) = n + 3                      (b) (y + 10) – 3 = n

(c) (y + 3) = n + 10                       (d) (y + 10) + 3 = n

2. Write an algebraic expression for the following statement.

[Hint: Let y be the first number.]

The sum of three consecutive  whole numbers.

(a) y + 2y + 3y                               (b) 3y + 1