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# It’s a party! PowerPoint PPT Presentation

It’s a party!. Solving Multi-step Equations. With Multi-Step Equations it can be hard to know where to start…. pretend it’s a party!. You are the host - a.k.a. ‘X’ In what order do people leave a party? Enemies (get rid of them to avoid trouble)

It’s a party!

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## It’s a party!

Solving Multi-step Equations

### With Multi-Step Equations it can be hard to know where to start…. pretend it’s a party!

You are the host - a.k.a. ‘X’

In what order do people leave a party?

• Enemies (get rid of them to avoid trouble)

• Acquaintances (after mingling with everyone, they usually leave early)

• Friends (they hang out with the host a little longer)

• Family (if attending, they will stay to the end to help clean)

### Who is who?Consider our one-step equations

FAMILY….right beside you…and only you… until the end!

2x = 8

x +3 = 15

x – 5 = 20

FRIENDS….they are close to you…they stay longer than some people, but not as long as family

### Who are the acquaintances?

ACQUAINTANCE –

Because this number mingles with all other parts of the equation instead of giving most of its attention to the host (x), it is not a friend…it is an acquaintance.

FRIEND

FAMILY

ACQUAINTANCE

### The equal sign is the door…who goes out the door first?

The work:

ACQUAINTANCE – multiply each side of the equation by 3.

The result:

We still have company... lets continue….

### Who is next to leave?

Friends – add 5 to each side.

The work:

The result:

All that is left is family…a familiar one-step equation.

### Clean up the party with a family member

The work:

Family – divide each side by 2

The result:

Don’t forget to check your work with Order of Operations!

### Try these problems:

• Steps:

• Identify the party-goers

• Eliminate party-goers in order

• Get x (the host) alone

### Enemies can ruin the entire party…get rid of them first!

Its easy to spot an enemy…they affect everything!

To solve, multiply each side by the reciprocal

The work:

Try to complete the problem from here….the answer is:

The result:

21

### Its party time!Do you know who is in your home?

Family

HOST

Friend

Enemy

The Door!

Acquaintance

See if you can ID the enemy, the friend, the acquaintance, a family member, the host and the door!

### The more you party, the more responsible you will become!

• TIPS:

• Enemies and acquaintances are very similar…both affect the entire equation. Typically there are only enemies when you have already identified an acquaintance.

• Eventually, you will partiers outside the door (operations on both sides of the equal sign). Start these by using the same method to get everyone on one side..

• If you find yourself (the host) in two places at once (variables on both sides of the equal sign), use the same method to regroup yourself back into the house.