Is it a solution?

Is it a solution?

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A solution is... an answer to the problem

Multiple Choice

Problem: I am hungry

Which is a solution?

• Eat Something

• Complain about it

• Do Nothing

Multiple Choice

Tickets for the dance cost $20. I have $6. How much do I need?

• $14

• $6

• $20

• $26

Equations

Express the situation with mathematical symbols and an equals sign.

What you do not know....

We use a VARIABLE

Multiple Choice

Tickets for the dance cost $20. I have $6. How much do I need?

What do you not know?

• let x = money to earn

• let x = cost of dance ticket

• let x = money I have

• let x = some number

What math happens???

Are you adding? Subtracting? Multiplying? Dividing? And what does that equal when you do that?

Multiple Choice

Tickets for the dance cost $20. I have $6. How much do I need?

If x = money to earn... which equation describes this scenario?

• x + 6 = 20

• x - 20 = 6

• 20 + 6 = x

• x - 6 = 20

The equation is...

x + 6 = 20

The solution is... what makes the expression TRUE?

x + 6 = 20

(14) + 6 = 20 TRUE!

So x = 14

Multiple Choice

Xu has $10. He spent some money on candy and now only has $3.

10 - c = 3

is c = 7 the solution?

• Yes

• No

10 - c = 3

10 - (7) = 3

3 = 3 TRUE!

Xu has $10. He spent some money on candy and now only has $3.

10 - c = 3

is c = 7 the solution?

Multiple Choice

For the equation

6 = 4 - x

is x = 2 the solution?

• Yes

• No

6 = 4 - x

• 6 = 4 - (2)

• 6 = 4-2

• 6 = 2

• FALSE!!! Not a solution