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Variables in algebraVariables in algebra are letters such as x, y, v, g, or call it any letter you want that can be used to represent unknown numbers. If the value of the variable is known, you can replace the letter with the known value. All numbers can be graphed on a number line. Just locate the value on the number line and put a dot. For example, graphing x = 4 gives the following graph:  Other examples: Graph x = -6 on the number line Just locate -6 on the number line and make a draw a circle at -6  Graph x = 0 Just locate 0 on the number line and draw a circle  Now, write a statement of equality for each of the following graphs. Use x as the variable. Graph #1:  Answer: x = -2 Graph # 2:  Answer: x = 8
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| Homepage | Integers|
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|Comparing integers
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| Subtracting integers
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|Division of integers
| Variables in algebra
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| Solving equations using addition
| Solving equations using subtraction
| Solving multiplication equations
| Solving two-step equations
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