alg1 4.12 solving equations review

Algebra 1

Lessons 4.12

Solving Equations Review

HChow did it come about that

Think-Pair-Share

+ + = +

- - = +

- + = -

+ - = -

Rules: - = opposite, + =

Order of Operations: SMOTD

How to drive a car.

Unlock the car.

Sit on the seat.

Enter key into ignition, turn.

Put on your seatbelt.

Press brake, shift to "drive."

Check mirrors.

P

E

MD

AS

Order of Operations:

PEMDAS

PEMDASPEDMASPEMDSAPEDMSA

HCP

E

MD

AS

P

E

MD

AS

SA

DM

E

P

EquationsExpressions

PEMDAS SADMEPvs.

Simplify Solve

(32 + 4) 3 - 5 = -6x3

Example: Example:

Transforming

Equations

3x + 5y = z

**Put answer in WITA**

Solve for y:

Solve = get it by itself

Step 1: Simplify (get rid of parenthesis)

Step 2: Combine like terms (if on same side)

Step 3: Isolate the term w/the variable (SADMEP)

Step 4: Isolate the variable (inverse ops)

How to solve for a variable:

3x + 4 = 10 3x + y = zSolve for x: Solve for y:

Step 1: Simplify (get rid of parenthesis)

Step 2: Combine like terms (if on same side)

Step 3: Isolate the term w/the variable (SADMEP)

Step 4: Isolate the variable (inverse ops)

How to solve for a variable:

2x + 6 = 3x - 12

SMOTD