\"\"

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The equation is \"\".

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Apply distributive property: \"\".

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\"\"

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\"\"     (Multiply:  \"\")

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Apply distributive property: \"\".

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\"\"

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\"\"         (Multiply:  \"\") \"\"

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Apply distributive property: \"\".

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\"\"

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\"\"            (Multiply:  \"\")

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Apply distributive property: \"\".

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\"\"

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\"\"               (Multiply:  \"\") \"\"

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\"\"               (Apply commutative  property: \"\")

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\"\"                                  (Add: \"\")

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\"\"                                   (Cancal each sides same terms)

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\"\"

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

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\"\"                                                            (Add: \"\")\"\"

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\"\"                                            (Add 3a to each side)

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\"\"                                            (Apply commutative  property: \"\")

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\"\"                                                          (Apply additive inverse  property:\"\")

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\"\"                                                                (Apply additive identity  property: \"\")

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\"\"                                                                         (Add: \"\") \"\"

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\"\"                                                                   (Divide each side by 5)

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\"\"                                                                         (Cancel common terms)

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\"\"                                                                              (Divide: \"\")\"\"

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Check:

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To check, substitute \"\" in equation \"\".

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\"\"           (Substitute \"\")

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\"\"                  (Add: \"\")

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

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\"\"                                          (Multiply: \"\")

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\"\"                                                   (Multiply: \"\")

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\"\"                                                               (Add: \"\")

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\"\"                                                                      (Add: \"\")

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The equation is true. \"\"

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The value of \"\".