SOLVING LINEAR EQUATIONS.

Recall the following:


Problem 2a:

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Answer:

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Solution: Subtract 7 from both sides of the equation:

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Divide both sides by 2:

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Check: Substitute -2 for x in the original equation. If the left side equals the right side after the substitution, your answer is correct.


Problem 2b:

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Answer:

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Solution: Add 3 to both sides of the equation:

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Divide both sides by 3:

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Check: Substitute tex2html_wrap_inline126 for x in the original equation. If the left side equals the right side after the substitution, your answer is correct.


Problem 2c:

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Answer:

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Solution: Add 17 to both sides of the equation:

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Divide both sides by 5:

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Check: Substitute 4 for x in the original equation. If the left side equals the right side after the substitution, your answer is correct.


Problem 2d:

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Answer:

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Solution: Subtract 5 from both sides of the equation:

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Divide both sides by 10:

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Check: Substitute tex2html_wrap_inline132 for x in the original equation. If the left side equals the right side after the substitution, your answer is correct.


Problem 2e:

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Answer:

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Solution: Add tex2html_wrap_inline136 to both sides of the equation:

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Divide both sides by 4:

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Check: Substitute tex2html_wrap_inline138 for x in the original equation. If the left side equals the right side after the substitution, your answer is correct.

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Author: Nancy Marcus

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