Algebra Review for Geometry

Algebra Review for Geometry

​You need:

• ​Pencil

• ​Notebook

• ​Chromebook (log into Quizizz)

Multiple Choice

Simplify:

$$\left(1-5\right)\left(3\right)$$  

• 12

• 18

• -12

• 15

Multiple Choice

Simplify:

$$\left(5\right)\left(2-6\right)$$  

• -20

• 40

• 60

• 20

Poll

How did you do on those first two questions?

• I got them both right!

• I got one wrong

• I missed both questions

​Solving equations

• ​Remember: Whatever you do to one side of the equation, you must do on the other side (keep it balanced)

• ​Combine like terms on each side of the equation first (if possible)

• ​Use inverse operations to isolate the variable

Multiple Choice

In this problem:

  $$-8v+3-3=-2v-12$$  

What would you need to do first?

• Add 12 to both sides

• Combine like terms

  ( $$3-3$$  )

• Add 2v and 8v

• Subtract 3 from both sides

​Step 1: Combine like terms

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​Step 2: Add 2v to both sides to get rid of it from the right and move it to the left (always make sure variables are on one side only). Why do we add 2v and not subtract?

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​Step 3: Divide both sides to get rid of the -6 in front of the v. Why divide?

Multiple Choice

Solve for a: 

$$3a+a=16$$  

• 32

• 8

• 16/3

• 4