1. 2.5 Solving Linear Equations: ax+b=cx+d
M60 Day 9
2.5 Solving Linear Equations: ax+b=cx+d

2. Warm-up
Change into an algebraic expression: Twice the sum of 3 and a number.
Solve and check:

3. General Procedure ReMOVE coefficients by Multi/Divide
Simplify each side - Remove grouping symbols and combine like terms
MOVE terms by adding/subtracting
ReMOVE coefficients by Multi/Divide
Check your answer

4. Solve the Linear Equation
Try it…

5. Solving Linear Equations
Ex:

6. Solving Linear Equations

7. Types of Equations
There are three types of linear equations based on the number of solutions:
Conditional
Finite number of solutions Ex. X=19
Identity
Infinite number of solutions Ex. 31=31
Contradiction
No real solutions Ex. 2=15

8. Solving Linear Equations
State if Conditional, Identity or Contradiction

9. Coming up… Quiz #4 – by Friday 11/1 Day 10 Reading Guide 3.1-3.2
No School 11/11 (Monday)
Test #2 – November 25th

10. Exit Ticket
Solve for the variables. State if the equation is Conditional, Identify or Contradiction.
Show your process steps and check conditional solutions.