Solving for a Variable on Both Sides
Authored by Anthony Clark
Mathematics
8th Grade
CCSS covered
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Select the situation that could be modeled by: 120 + 25x = 45x.
John bought a car radio for $120 and speakers for $25 each. Joe bought a radio for $45. They each paid the same. How much did they spend?
George charges a flat fee of $120 to mow a lawn plus $25 an hour. Greg charges $45 a hour to mow a lawn. After how many hours do they make the same amount?
Lisa pays $120 for each purse she buys plus an additional $25 to have them personalized. Lauren pays $45 for each purse she buys. How many purses must they buy for the amount they spent to be the same?
2.
REORDER QUESTION
1 min • 1 pt
Put the Steps or solving Equations with Variables on both sides in order.
Move the variables to one side
Combine Like terms
Distribute
+ or - the constant
or the coefficient
3.
REORDER QUESTION
1 min • 1 pt
Put the steps for solving this equation in order:
3=3x
1=x
2x-6=5x-9
-6=3x-9
Tags
CCSS.8.EE.C.7B
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Solve the equation for d.
d / t = r
d = r / t
d = t / r
d = rt
d = r - t
Tags
CCSS.HSA.CED.A.4
5.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
Solve for the variable.
22+2a=37+6+a
a = 21
a = 5
a = -5
a = -16
6.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
Solve for the variable.
8-3a+12=2a
a = 4
a = 1
a = 3
a = 5
Tags
CCSS.7.EE.B.4A
7.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
Solve for the variable.
10x + 9 = 4x - 9
x = 18
x = 3
x = -3
x = -18
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