Equation Review1.2

Random

100

Simplify. 5.6x- 47x 

0.9x

200

19(a + 4)=27 , It is ______.

A. expression

B. equation

C. math symbol

B

300

27 + 3b , It is ______.

A. expression

B. equation

C. math symbol

A

400

6b - 72>16 , It is ______.

A. expression

B. equation

C. None

C

500

87-78=9 , It is ______.

A. expression

B. equation

C. none

B

one step equations

100

17+x=35

x=18

200

22-n=6

n=16

300

 x➗23=8

x=184

400

12k=132

k=11

500

98➗x=14

7

two-Step Equations

200

4x + 26 =54

x=7

300

5.5x−3.5x=15

x=7.5

400

84−4g=6

g=19.5

500

3（y – 2 ）= 39

y=15

multi-step

300

2(3x-4) =10

x=3

400

3z+z -3.5✖6 =

z=39

500

（20—2m）➗6=1.5

m=5.5

Word Problems

300

The area of a triangle is 45cm². If the base is 15cm. What is the height?

If the height is x cm

15x ➗ 2 = 45

       x = 6 

The height is 6cm.

400

Amy has 5 boxes of bananas. Each box has the same number of bananas. After Amy eats 2 bananas, there are 203 bananas left in the boxes. How many bananas were in each box?

x - # of bananas in each box 

5x - 2 = 203

       x = 41 

There were 41 apples in each box.

500

The sum of three consecutive integers is 54. What are the integers?

n + n + 1 + n + 2 = 54

                         n = 17 

The integers are 17, 18, and 19.