Simplifying Expressions and Solving One and Two Step Equations

Using the "opposite operation" to "undo" and isolate the variable when solving an equation is more commonly called...

• Inverse operations

• math

• variable

• PEMDAS

Which are true statements when solving algebraic equations? (Select all that apply)

• Whatever you do to one side of the equal sign, you must do on the other side of the equal sign

• Negative signs can be ignored

• Always start on the left side, regardless of where the variable is

• Always do the opposite operation

What is the solution:

3w = 30

• Add 3 to both sides of the equation

• Subtract 3 from both sides of the equation

• Divide both sides of the equation by 3

• Multiply both sides of the equation by 3

The steps in solving 5b - 6 = 24 are: 

• Add 6 to both sides and divide both sides by 5

• Add 6 to both sides and multiply both sides by 5

• Subtract 6 from both sides then multiply both sides by 5

• Subtract 6 from both sides then divide both sides by 5

What is the first step to solve this equation: -11 - 3x = 44

• Add 3 to both sides

• Subtract 11 from both sides

• Add 11 to both sides

• Divide 3 on both sides.

• x=11

• x=9

• x=12

• x=23

• a = -2

• a = -7.5

• a = 2

• a = 6

• a=-10

• a=10

• a=4.5

• a=-4.5

• z = -1

• z = 1

• z = 0

• z = 8

• Add 4 to both sides of the equation

• Subtract 4 from both sides of the equation

• Multiply both sides of the equation by -4

• Divide both sides of the equation by 4