Wednesday, May 13, 2009

Doing the 2-Step...and I don't mean the dance...

Solving 2-Step equations becomes a challenge for many 8th graders taking Pre-Algebra. As a general rule, you want to follow the steps below. Write them in your journal and then solve the 3 problems below. Solutions will be posted later. Happy Solving!

Steps to Solving Equation:
1. Clear Parenthesis (by disribution)
2. Combine all like terms on the same side
3. Begin getting like terms on the same side (ex. all the variables on one side and all the numbers on the others)...to do this...UNDO Addition or Subtraction
4. Get the variable by itself...to do this...UNDO Multiplcation or Division
5. Always check your answer by plugging it back in to the original problem. If both sides equal, then you have the correct answer.

Try These:

1. 3(x-5) + 17 = 2(4x+2) - 12

2. 6(2x+1) = 4x+30

3. 7x-5 = 10x+22

No comments:

Post a Comment