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Solving Equations for a Specific Variable. When solving for a specific variable, follow the same rules as when you are solving “regular” equations. 

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Presentation on theme: "Solving Equations for a Specific Variable. When solving for a specific variable, follow the same rules as when you are solving “regular” equations. "— Presentation transcript:

1 Solving Equations for a Specific Variable

2 When solving for a specific variable, follow the same rules as when you are solving “regular” equations.  Begin by identifying the variable you are solving for.  Then, SIMPLIFY the equation. Remember – get rid of fractions, parentheses or like terms.  Next, ISOLATE that variable by “undoing” the operations around that variable. Get all of the same variables on the same side of the equal sign.  Then, SOLVE for the variable.

3 Like this…… 1. Solve for d: 2. Solve for n: Mark the variable you are solving for. “Undo” the operation that “connects” the ‘d’ to the other numbers or variables. What operation connects the 5 to the c 2 and to the d? Multiplication – so what is it’s opposite? Division So divide both sides by everything in front of the d.

4 If I’m solving for “w” I want all of my “w’s” on the LEFT side of the equal sign and all the “u’s” on the RIGHT…..so ISOLATE Now SOLVE for “w”. 3. Solve for w:

5 If I’m solving for “u” I want all of my “u’s” on the LEFT side of the equal sign and all the “w’s” on the RIGHT…..so ISOLATE Now SOLVE for “u”. 4. Solve for u:

6 5. Solve for A: Simplify – get rid of the parentheses then the fraction in this case. Now mark your variable and ISOLATE. And SOLVE for “A” 6. Solve for A:

7 7. Solve for c: Simplify – get rid of the parentheses then the fraction in this case. Now mark your variable and ISOLATE. And SOLVE for “A” 8. Solve for b:

8 9. Solve for h: 10. Solve for L:


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