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

Choose the pair of like terms

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

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

The variable in the expression 16x − 7 is _________

The constant term of the expression 2y − 6 is ________

The number of terms in the expression 3ab + 4c –9 is ________.

x + ( −x) = 0

The co-efficient of ab in the term 15 abc is 15.

When y = −1, the value of the expression 2y − 1 is 3

Sum of a - b + c and -a + b - c is zero.

Find the numerical co-efficient of the following terms. Also, find the co efficient of x and y in each of the term: 3x, - 5xy, - yz, 7xyz, y, 16yx.

A person has Rs.960 in denominations of Rs.1, Rs.5 and Rs.10 notes. The number of notes in each denomination is equal. What is the total number of notes?

A cricket team won two matches more than they lost. If they win they get 5 points and for loss -3 points, how many matches have they played if their total score is 50.

Add the expressions:
(i) pq −1 and 3pq + 2
(ii) 8x + 3 and 1 − 7x

Simplify:100x + 99y – 98z + 10x + 10y + 10z – x – y + z