1- and 2-Step Equations

1-Step

100

The process of solving 1-step equations

What is "to isolate the variable by doing the reverse operation for the equation"?  

200

X-4=7

X - 4  =7
   +4     +4
X=11

CHECK! 11-4=11

300

x−21=6

x−21=6
  +21 +21 

x=27 

CHECK:27-21=6

400

k+10=27

k+10=27
  -10 -10 

k=17 

CHECK:17+10=27

500

29=p+20

  29=p+20
- 20     -20 

9=p 

Check: 9+20=29

2-Step

100

2h + 2 = 4

h = 1

200

29=5+8b

8b + 5= 29  
      -5   -5
8b=24
---  ---
8     8 

b=3          
Check: 8(3)+5=29

300

67=11n+1

67=11n+1
 -1        -1 
11n=66
/11   /11

n=6

Check: 67 = 11(6) + 1

400

3(q-7)=27

3(q-7)=27
------    ----
    3       3 

q-7=9
 +7 +7

q=16                  Check:3(16-7)=27 

500

(j/2)+7=12

(j/2)+7=12
     -7   -7
j/2 = 5
*2    *2

j=10

check: (10/2)+7=12

More 1-Step

100

x + 5 = 11

x = 6

200

What step do I take to solve 15 = 3w?

Divide by 3 on both sides of the equal sign

300

a/7=9

a/7=9
x7 x7 

a=63 

Check:63/7=9

400

2=f/8

  2=f/8
x8   x8 

16=f 

Check:16/8=2

500

-2y=18

-2y=18
---   ---
-2    -2 

y= -9

Check: -2(-9)=18

Nothin but explaining

100

How are equations different from expressions?

Equations have equals signs and expressions do not!

200

When we solve equations, we use ________ operations.

Inverse

300

How do you check 1-step equations?

Plug the answer you got in for the variable in the original equation and see if it is true.

400

How do you check 2-step equations?

Plug the value of the variable into the original equation and perform the operations (do) in order to see if it is true.

500

What are the steps to solving 3x + 5 = -13?

Subtract 5 from both sides, then divide both sides by 3

Random

100

What is your teacher's name?

Miss. Key

200

Who are one of the office ladies?

Gina

Terry

Melinda

300

What is the CI mascot?

Musketeers

400

What do you call a fake noodle?

An ImPASTA!!!

500

What is Mrs. Nixon's first name?

Tracy