Expression basics-simplify-Evaluate

An expression can have

• constants

• Variables

• any combination of constants and variables

• None of the above

In the expression 4x + 3y + 5, the constant is

• 3

• 4

• 5

• None of the above

Answer explanation

In the given expression (4x + 3y + 5), the constant term is the term that does not have any variable attached to it. In this case, it is '5'. So, the correct answer to the question is '5'.

What is a variable in the expression, 5x -3y +8

• only x

• only y

• both x and y

• 8

How many terms are there in ths expression ==>

5x - 8y + 7xy -10

• 3

• 2

• 4

• 0

What is the coefficient of "x" in this expression ==>

6y + 3x -15

hint: the coefficient is the number before the variable

• 3

• 6

• -15

• 0

Simplify the expression ==>

3x -7x + 8

• -4x + 8

• 4x+8

• 11x + 8

• none of the above

Simplify the expression. ==>

2(4x - 5) + 8x

• 4x -5

• 16x -10

• 16x + 10

• 8x -10