Linear Equations

One step

100

x+4=7

x=3

200

x-5=12

x=17

300

5x=20

x=4

400

x/2=8

x=16

500

7x=84

x=12

Two step

100

2x+6=18

x=6

200

3x-1=11

x=4

300

10x+3=23

x=2

400

5x-7=23

x=6

500

8x-7=73

x=10

Inverse operation

100

What is the opposite of addition?

Subtraction

200

What is the opposite of subtraction?

Addition

300

What is the opposite of multiplication?

Division

400

What is the opposite of division?

Multiplication

500

What does "inverse" or "operation" mean?

Inverse - opposite or reversed (ex. add is the inverse of subtract

Operation - to do something (ex. add, subtract, multiply, divide)

Bonus

100

9x=63

x=7

200

Is x=4 a solution to 3x+2=14?

Yes

300

0.2x=2

x=10

400

Define "linear" or "equation"

Linear - in a line

Equation - a formula. a mathematical statement

500

3x + 2x + 9 = 34

x=5

Misc

100

What is the inverse operation for addition?

Subtraction

200

What is the inverse operation of subtraction?

Addition

300

What is the inverse operation of multiplication?

Division

400

What is the inverse operation of division?

Multiplication

500

What is the goal when solving linear equations?

To isolate the variable by itself.