Expressions, Equations p.1 Quiz Review

 $x+8.63=11.001$  What is the solution of the equation

• x = 19.631

• x = 10.138

• x = 3.471

• x = 2.371

Solve the equation below: $0.3r\ =\ 2.1$ 

• r = 0.7

• r = 1.8

• r = 7

• r = 18

Which pair of expressions are equivalent?

• 4(6x) and 10x

• 4(6x) and 24x

• 4x + 6x and 10x²

• 4x + 6x and 24x

What value of y makes the equation $y\ +\ 2.9=11$  true?

• 8.1

• 8.9

• 9.1

• 13.9

Which expression is equivalent to $5\left(6x+3y\right)$ ?

• 11x + 3y

• 11x + 8y

• 30x + 3y

• 30x + 15y

A group of variables, constants and operations that an include an equal sign

• Equation

• Constant

• Expression

• Variable

What is the difference between an expression and equation?

• Expressions have an equal sign and equations do not have an equal sign
• Expressions do not have an equal sign and equations do have an equal sign
• There is not a difference
• Expressions do not have variables and equations have variables

• x = 20
• x = 7
• x = 10
• x = 3

Solve: 

 $50=-2.5x$  

•  $x=20$  

•  $x=-125$  

•  $x=-20$  

•  $x=47.5$  

Solve: 

 $\frac{x}{8}+6=32$  

•  $x=208$  

•  $x=40$  

•  $x=5$  

•  $x=38$