Solving Systems of Equations Review
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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20 questions
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1.
DRAG AND DROP QUESTION
1 min • 2 pts
What is the solution to the system of equations?
4x-y=3
3x+y=4
( (a) , (b) )
1
2
3
4
5
6
7
8
9
0
Tags
CCSS.HSA.REI.C.9
2.
REORDER QUESTION
1 min • 5 pts
Put the steps for solving by SUBSTITUTION in order:
Solve for the second variable
Solve one equation for x or y
Plug that number into the other equation
Solve for the first variable
Plug the resulting expression into the other equation
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
DRAG AND DROP QUESTION
1 min • 2 pts
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)
-42
3
30
-3
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
DRAG AND DROP QUESTION
1 min • 5 pts
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) ).
3
9
0
y
x
y=3
3y
-9
18
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MATH RESPONSE QUESTION
1 min • 1 pt
Enter the x coordinate of the solution to this system of equations.
HINT: Make sure both equations are in (x + y = #) form. Then do the shortcut.
Mathematical Equivalence
ON
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MATH RESPONSE QUESTION
1 min • 1 pt
What is the x coordinate of the solution to this system of equations? HINT: Graph and use nSolve. Menu 64.
Mathematical Equivalence
ON
Tags
CCSS.8.EE.C.8B
7.
MATH RESPONSE QUESTION
1 min • 1 pt
Enter the x coordinate of the solution to this system of equations. HINT: Make sure both equations are in (y=mx+b) form. Then do the shortcut with DESMOS
Mathematical Equivalence
ON
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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