Geometry Warm up #3. 2-5 ALGEBRA PROOFS Properties of Equality—(Don’t write, they’re on your PAPER!)

Geometry Warm up #3

2-5 ALGEBRA PROOFS

Properties of Equality—(Don’t write, they’re on your PAPER!)

These are the same properties but with Congruence signs instead of equals.

Distributive Property—Add to Notes!

Problem 1

Problem 2What is the value of x? Justify each step.

Try with a Partner

Proofs Don’t need to write just READ!

Proof #1(Copy the T-charton your paper!!)

STEP1. 3x = 7 – 1/2x

2. 6x = 14 – x

3. 7x = 14

4. x = 2

REASON1. GIVEN

2. Multiplication Property

3. Addition Property

4. Division Property

It will give you the 1st stepFirst reason is always “given”

TOO: 3 Steps

Step1. 2x + 3 = 11

2. 2x = 8

3. x = 4

Reason1. Given

2. Subtraction Property

3. Division Property

Homework

•2-5 Worksheet•Have a great weekend!•Modeling Monday!!!!!