Question

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

Answer 1

4x +$8

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