Unit 7 Review Jeopardy

Writing Equations

100

The sum of a number x and 4 equals 12.

x + 4 = 12

200

9 times a number b is 36.

9 x b = 36

300

9 less than a number n equals 27.

n - 9 = 27

400

5 is one fourth of a number c.

5 = 1/4(c)

500

9 added to the square of a number is 13

9+x²=13

Add. / Sub. Equations

100

 y - 7 = 3

y=10

200

p+5=8

p=3

300

Is the given value a solution? x+42=85 ; x=43

yes

400

3/4 = j - 1/2

j = 1 and 1/4

500

b +7 +12 = 30

 b = 11

Mult. / Div. Equations

100

s/10 = 7

s=70

200

42 = 7k

k=6

300

12.5n=32 (give answer in a decimal form to the nearest hundredth)

n=2.56

400

3(25) = 6w

w=12.5

500

c/15 = 4.4(2)

c = 132

Two-steps equations

100

8 + z/4 = 23

z = 60

200

4b - 12 = 0

b=3

300

2.4a + 8 =27.2

a = 8

400

 c + 3c = 16

c=4

500

32y + 10 - 2 =24

y = 1/2

Distrib. Equations

100

2(x-1)=6

x=4

200

4(3x-12)=16

x=6

300

-3(x-20)=21

x=13

400

3(12-x)=18

x=6

500

2(x-7) - 19= 1

x=17