\"\"\"\"

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The expression is \"\".

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According to subtraction property of equality: if \"\", then \"\".

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\"\"          (Subtract 20 from each side)

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\"\"                           (Additive inverse property: \"\")

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\"\"                                  (Subtract: \"\")\"\"

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Check:

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To check the solution Substitute the value of \"\" in above expression.

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\"\"

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16 = 16                                  (Add: \"\")\"\"

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The value of \"\"

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By the number line \"\"

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\"number