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Published bySamantha Donovan Modified over 10 years ago

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Combining Like Terms

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Only combine terms that are exactly the same!! Whats the same mean? –If numbers have a variable, then you can combine only ones that have the same variable –You can also combine numbers that have no variables

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Examples Which numbers are the same? 5x, 8y, 9z, 10, 12x, 14z, 7 Same: 5x and 12x Same: 10 and 7 Same: 9z and 14z

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Lets try it! 4x + 9x 13x -7y + 9y 2y -8y + (-4y) -12y 4x + 8y + 10x 14x + 8 y 5 + 8x + 7y + 10 8x + 7y + 15

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Final Problems: 1.4x + 5y – 2x + 3y 2.5(x + y) + 2(x + y) 3.3 + 5x – 4y + 2y – 8x 4.(-13) + (-2y) + (-7) – 4y 5. 8(2x – 3y) + 4(y – 3x)

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