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```Solve for x
x is the unknown number
x is the variable
Remember
You can only do four operations to a number.
2. Subtract
are inverses
3. Multiply
4. Divide
are inverses
Subtraction is the addition of the opposite sign
Division is repeated subtraction
Solve for x
1st Write the equation
2nd Think
Ask yourself: What do I do next?
3rd Begin
4th Isolate the variable
5th After each step, ask yourself:
What do I do next?
Steps to Solve for x.
Isolate the variable by following these 3 steps
1. Work one side, then the other. Collect and combine like terms.
2. Work across the sign. Collect and combine like terms.
3. Keep the = down the center of your work
Use the Properties of Real Numbers
Property of Equality (Substitution – replace objects of = value)
Property of Distribution
Commutative Property
Associative Property
Follow the Order of Operation: GERMDAS
G
grouping symbols
ER
exponents
MD
multiplication division
AS
subtraction
Steps to Solve for x.
Work carefully