- Resource Library
- Math
- Algebra
- System Of Equations With Three Variables
- Solving Systems Substitution/elimination Test
Solving Systems Substitution/Elimination Test
Authored by Rickey Taylor
Mathematics
12th Grade
Used 4+ times
AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
125 questions
Show all answers
1.
REORDER QUESTION
1 min • 1 pt
What order is the 5 steps for elimination method?
Place in Standard Form
Determine which variable to eliminate
Plug variable back into equation
Check your solution
Add or subtract the equations
2.
REORDER QUESTION
1 min • 1 pt
What are the five steps to solving systems using substitution method.
Solve an equation for one variable
Plug back in to find the other variable
Substitute
Check your solution
Solve the equation
3.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
In this system
x+3y=9
4x-2y=-6
it'll be easiest to start by solving the first equation for x.
The result of doing so is x=
(a)
4.
DRAG AND DROP QUESTION
1 min • 1 pt
In this system
x+3y=9
4x-2y=-6
it'll be easiest to start by solving the first equation for x.
The result of doing so is x=9-3y.
Fill in the blanks to plug that expression in and solve for y:
4(9-3y)-2y =-6
36-12y-2y=-6
36-14y =-6
-14y= (a)
y= (b)
5.
DRAG AND DROP QUESTION
1 min • 1 pt
In this system
x+3y=9
4x-2y=-6
we have figured out that x=9-3y, and y=3.
Complete the steps to solve for x:
x=9-3( (a) )
x=9- (b)
x= (c)
The solution to the system is ( (d) , (e) ).
6.
REORDER QUESTION
1 min • 1 pt
Put the steps for solving by ELIMINATION in order:
Multiply one or both equations by a number to get common but opposite coefficients
Solve for the remaining variable
Make sure the equations are lined up
Subtract the equations to eliminate one variable
Plug that number into either original equation and solve for the other variable
7.
DRAG AND DROP QUESTION
1 min • 1 pt
Consider the system
4x+3y=-1
5x+4y=1
Let's say I want to eliminate the y's. What is the least common multiple of 3 and 4?
LCM = (a)
Multiply each equation by a number so that the coefficient of y will be 12, with one positive and one negative.
(b) (4x+3y=-1)
(c) (5x+4y=1)
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports
Continue with Google
Continue with Email
Continue with Microsoft
or continue with
%20(1).png)
Apple
Others
Already have an account?
