Solving for X (one-step equations)

Vocab

100

A math problem with an = sign

Equation

200

The letter in the equation

Variable

300

The answer to an equation

Solution

400

Something you use to cancel

Inverse

500

What is the solution shown?

x - 4 = 7

   + 4    + 4

x = 11

________________________

11 - 4 = 7

   7 = 7

11

D-LevelWhat is the inverse?

100

x - 12 = 1

Add 12 on both sides

200

3x = 42

Divide by 3 on both sides

300

x / 2 = 9

Times 2 on both sides

400

26 = x + 24

Subtract 24 on both sides.

500

28 = 7x

Divide by 7 on both sides

B/C-Level What is the inverse?

100

56 = -7 + x

Add 7 on both sides

200

-112 = 14x

Divide by 14 on both sides

300

7  =  x /  -5

Time by -5 on both sides

400

-12x = 48

Divide by -12 on both sides

500

-12 = -6x

Divide by -6 on both sides

Solve

100

x + 8 = -12

x=-20

200

5x = -45

x=-9

300

-10 + x = -14

x=24

400

x / -4 = -6

x=24

500

-36 = -9x

x=4

Mrs. Laurie Trivia

100

Mrs. Laurie has how many children?

1

200

What mistake does Mrs. Laurie see every year when solving an equation like  

-4x = 32

Adding instead of dividing

300

Mrs. Laurie did what sport growing up?

Gymnastics

400

How old is Mrs. Laurie? 

37

500

What annoys Mrs. Laurie the most as a teacher? 

Students talking while she is teaching.