Equations and Expressions Terms

What is the simplified form of this expression
3x+4+5x+3

• 15x

• 8x+7

• 7x+8

Add these expressions
(3x+15) + (4x+13)

• 7x+ 28

• 35x

• x+2

Evaluate the expression.    Let     c = 3     d = 2
3c + 7d

• 27

• 21

• 29

• 23

Identify the constants in the following expression 3 + 4x - 2x + 5?

• 3 and 5

• 4 and 2

• x because it is always x

• -2

The table shows Sandra's weekly earnings, y , based on the number of hours she works. Which equation can Sandra use to calculate her weekly earnings when she works x hours?

​ (a)  

• y = 8x

• y = 5x + 40

• y = 10x

• y = 10x + 80

The table shows Sandra's weekly earnings, y , based on the number of hours she works. Which equation can Sandra use to calculate her weekly earnings when she works x hours?

• y = 8x

• y = 5x + 40

• y = 10x

• y = 10x + 80

The equation for the table below is y=2x+5, fill in the missing values.

c

d

e

f

7

0

3

9

4

-1

Which expression contains exactly 3 terms?

• 5 + 6xy

• 9 + 4t

• 8 + 2y - 5x

• 24xy

What is the coefficient of x?
8 + 5x - y

• 8

• 0

• 5

• -5

What is the coefficient:

4 - 2y

• 2

• 4

• -2

• 0