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A store owner spends 7x + $13 on two order of boxes of light bulbs including shipping if she spends 3x + $5 on the first order of lightbulbs how much does she spend the second order

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sqdancefan

Answer:

  4x +$8

Step-by-step explanation:

You know that ...

  cost of both orders = cost of first order + cost of second order

Subtracting the cost of the first order gives ...

  cost of both orders - cost of first order = cost of second order

  (7x +$13) -(3x +$5) = cost of second order

  (7x -3x) +($13 -$5) = cost of second order

  4x +$8 = cost of second order

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