Algebra - Writing mathematical phrases using letters to represent unknown numbers

Ex. 5 + x = 7 or 7 - x = 5

Variable - A letter used to represent an unknown number in an equation or expression

Ex. 5 + x = 10 x <---- is the variable

Constant - The integer in an algebraic equation or expression

Ex. 5+ x = 10 In this case 5 is the integer

Expression - A pattern that may have many answers

Ex. 5x

Equation - An equation only has 1 answer and contains an equal sign

Ex. 1 + x = 2

How to Solve a 1 Step Equation

1) Isolate the variable

2) Cancel the constant using a zero pair

3) Balance - What you do to one side of the equation do to the other

4) Verify to check - Rewrite the equation but include the answer you received if they match up your correct

How to Solve 2 Step Equation

1) Isolate the variable

2) Cancel the constant using zero pairs

3) Balance the equation out

4) Simplify the variable

5) Balance the equation again

6) Verify to check

Good job, Kevin! Next time add a video or link and outline your work on the piece of paper to make it stand out.

ReplyDelete