Welcome to GreeneMath.com, your source for free math help!
Equations Test
About Equations:

An equation is a mathematical statement where two algebraic expressions are set equal to each other. The solution to an equation is any value that makes the equation true when it replaces the variable. We can check any potential solutions with substitution.

Test Objectives:

•Understand the difference between an expression and an equation

•Demonstrate the ability to evaluate an algebraic expression for a given value

•Demonstrate the ability to check a proposed solution for an equation

Equations Test:




#1:


Instructions: Determine whether each is a solution to the given equation.


a)


b  =  -11 : -5,-22
2

b) -301 = -7(1 - 6a) : -7,4


Watch the Step by Step Video Solution  
|
   View the Written Solution



#2:


Instructions: Determine whether each is a solution to the given equation.


a) 256 = 8(-7p + 4) : 0,-4


b)


 1  -   2  =   1 : 5,-6
3x 3x2 x2

Watch the Step by Step Video Solution  
|
   View the Written Solution



#3:


Instructions: Determine whether each is a solution to the given equation.


a) x2 + 7x = -10 : -5,0


b)


 z  =  -18 : 360,-1,-360
20

Watch the Step by Step Video Solution  
|
   View the Written Solution



#4:


Instructions: Determine whether each is a solution to the given equation.


a)


 1  +   1  =  1 : 10,1
2y 2y2 y

b) k2 - 16k = -64 : 3,8


Watch the Step by Step Video Solution  
|
   View the Written Solution



#5:


Instructions: Determine whether each is a solution to the given equation.


a) x2 - 15x = -56 : 0,7


b) 8(4 - r) + 3 = 91 : -7,-4


Watch the Step by Step Video Solution  
|
   View the Written Solution



Written Solutions:




#1:


Solution:


a) -5 no : -22 yes


b) -7 yes : 4 no


Watch the Step by Step Video Solution



#2:


Solution:


a) 0 no : -4 yes


b) 5 yes : -6 no


Watch the Step by Step Video Solution



#3:


Solution:


a) -5 yes : 0 no


b) 360 no : -1 no : -360 yes


Watch the Step by Step Video Solution



#4:


Solution:


a) 10 no : 1 yes


b) 3 no : 8 yes


Watch the Step by Step Video Solution



#5:


Solution:


a) 0 no : 7 yes


b) -7 yes : -4 no


Watch the Step by Step Video Solution