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	Solving Quadratic Equations
	Solving Systems of Linear Equations
	Solving Linear Equations - Part II
	Solving Equations I
	Summative Assessment of Problem-solving and Skills Outcomes
	Math-Problem Solving:Long Division Face
	Solving Linear Equations
	Systems of Linear Equations in Two Variables
	Solving a System of Linear Equations by Graphing
	Ti-89 Solving Simultaneous Equations
	Systems of Linear Equations in Three Variables and Matrix Operations
	Solving Rational Equations
	Solving Quadratic Equations by Factoring
	Solving Quadratic Equations
	Solving Systems of Linear Equations
	Systems of Equations in Two Variables
	Solving Quadratic Equations
	Solving Exponential and Logarithmic Equations
	Solving Systems of Linear Equations
	Solving Quadratic Equations
	Math Logic & Problem Solving Honors
	Solving Quadratic Equations by Factoring
	Solving Literal Equations and Formulas
	Solving Quadratic Equations by Completing the Square
	Solving Exponential and Logarithmic Equations
	Solving Equations with Fractions
	Solving Equations
	Solving Linear Equations
	Solving Linear Equations in One Variable
	Solving Linear Equations
	SOLVING QUADRATIC EQUATIONS USING THE QUADRATIC FORMULA
	SOLVING LINEAR EQUATIONS

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Equ. #6:

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Solving Linear Equations

These are the methods used to solve linear equations:
1. Simplify the algebraic expressions in the equation.
2. Usually, simplify completely on each side individually before doing something to both sides.
3. Add or subtract the same number from both sides of the equation.
4. Multiply or divide both sides of the equation by the same non-zero number.

Eq. 1. Exercises. Do the following problems. On at least two of them, check the solution by
plugging it into the equation to see if it works. Answers are below.

1. Solve: 10x + 2x = 96
2. Solve: 2x + x = 72
3. Solve: 9x – 2x = 105
4. Solve: 112 = 6x – 2x
5. Solve: 3x = 9 * 4 – 12
6. Solve: 27 – 2*6 = 5x

In the following four problems, fill in the blank with either the word “simplify” or “solve” to
indicate what instruction would usually be given for a problem like this. Then follow the
instruction you just wrote and work the problem.

7. ______________ : 4*5 + 7*10
8. ______________ : 12 = 5x + x
9. ______________ : 4x + x
10. ______________ : 4*5 + 7*10 = 4x + x

Answers to Eq. 1:
1. x = 8
2. x = 24
3. x = 15
4. x = 28
5. x = 8
6. x = 3
7. “Simplify” 90
8. “Solve” x = 2
9. “Simplify” 5x
10. “Solve” x = 18