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Reuben has been saving $6 each week. Today he spent $90 of the savings, and he now has $48 left. For how many weeks has he been
saving?
(a) Write an equation that could be used to answer the question above.
First, choose the appropriate form. Then, fill in the blanks with the

Respuesta :

Answer:

23 weeks

Step-by-step (x = weeks)

90 + 48 = 138

divide 138 by 6 to find out how many weeks he'd been saving up .

that gives you 23 but to turn it into an equation  

6x - 90 = 48

    + 90  +90

6x = 138

_      _

6      6

x = 23 again x meaning weeks

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