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Lesson 15 Practice Quiz

Total questions: 15

Worksheet time: 4hrs 45mins

Name
Class
Date
1.

 x + 4 = 20x\ +\ 4\ =\ 20  

a)

 x = 24x\ =\ 24  

b)

 x = 80x\ =\ 80  

c)

 x = 4x\ =\ 4  

d)

 x = 16x\ =\ 16  

2.

 b − 20 = −15b\ -\ 20\ =\ -15  

a)

 b=17b=17  

b)

 b = −34b\ =\ -\frac{3}{4}  

c)

 b = 5b\ =\ 5  

d)

 b = −35b\ =\ -35  

3.

 20 = m + 720\ =\ m\ +\ 7  

a)

 m = −17m\ =\ -17  

b)

 m = 267m\ =\ 2\frac{6}{7} 

c)

 m = 27m\ =\ 27  

d)

 m = 13m\ =\ 13  

4.

 −13 + a = −9-13\ +\ a\ =\ -9  

a)

 a = −4a\ =\ -4  

b)

 a = 4a\ =\ 4  

c)

 a = −22a\ =\ -22  

d)

a = 913a\ =\ \frac{9}{13}

5.

 −13 = x + (−16)-13\ =\ x\ +\ \left(-16\right)  

a)

 x =3x\ =3  

b)

 x = −29x\ =\ -29  

c)

 x = −10x\ =\ -10  

d)

 x =1316x\ =\frac{13}{16}  

6.

 −7 = 11 + x-7\ =\ 11\ +\ x  

a)

 x = 4x\ =\ 4  

b)

 x = −77x\ =\ -77  

c)

 x = −18x\ =\ -18  

d)

 x = −711x\ =\ -\frac{7}{11}  

7.

 −8n = −160-8n\ =\ -160  

a)

 n = −2n\ =\ -2  

b)

 n = −19n\ =\ -19  

c)

 n = 20n\ =\ 20  

d)

 n = −17n\ =\ -17  

8.

 13 = x813\ =\ \frac{x}{8}  

a)

 x = 5x\ =\ 5  

b)

 x = 104x\ =\ 104  

c)

 x = 21x\ =\ 21  

d)

 x = 158x\ =\ 1\frac{5}{8}  

9.

 −17 = 120x-17\ =\ \frac{1}{20}x  

a)

 x = 3x\ =\ 3  

b)

 x = −1720x\ =\ -\frac{17}{20}  

c)

 x = −37x\ =\ -37  

d)

 x = −340x\ =\ -340  

10.

 3x = 93x\ =\ 9  

a)

 x = 27x\ =\ 27  

b)

 x = 3x\ =\ 3  

c)

 x = 6x\ =\ 6  

d)

 x = 12x\ =\ 12  

11.

 −60 = 12k-60\ =\ 12k  

a)

 k = −72k\ =\ -72  

b)

 k = −48k\ =\ -48  

c)

 k = −5k\ =\ -5  

d)

 k = −2k\ =\ -2  

12.

 14 = n1614\ =\ \frac{n}{16}  

a)

 n = 224n\ =\ 224  

b)

 n = 30n\ =\ 30  

c)

 n = −2n\ =\ -2  

d)

 n = 78n\ =\ \frac{7}{8}  

13.

What is the best equation to represent this word problem:

How old is Beth if she will be 87 years old in eighteen years?

a)

x = 87 + 18x\ =\ 87\ +\ 18

b)

18x = 8718x\ =\ 87

c)

x18=87\frac{x}{18}=87

d)

x + 18 = 87x\ +\ 18\ =\ 87

14.

What is the best equation to represent this word problem: Will and his best friend found some money lying in a field. They split the money evenly, each getting $9.31. How much money did they find?

a)

x + 2 = 9.31x\ +\ 2\ =\ 9.31

b)

12x = 9.31\frac{1}{2}x\ =\ \text{9.31}

c)

2x = 9.312x\ =\ 9.31

d)

9.31x = 29.31x\ =\ 2

15.

What is the best equation to represent this word problem: Your cousin gave you $10 to buy a shirt. This only covered 2/3 of the cost. How much did the shirt actually cost?

a)

x − 23=10x\ -\ \frac{2}{3}=10

b)

x + 23=10x\ +\ \frac{2}{3}=10

c)

23x = 10\frac{2}{3}x\ =\ 10

d)

x = 23(10)x\ =\ \frac{2}{3}\left(10\right)