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A store sells new DVDs for $12 each. used DVDs sell for $7 each. Joseph is buying two new DVDs and X used DVDs. write an equation that can be used to find X, the total Joseph mu…
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A store sells new DVDs for $12 each. used DVDs sell for $7 each. Joseph is buying two new DVDs and X used DVDs. write an equation that can be used to find X, the total Joseph mu…
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Apr 24, 2018
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a store sells new DVDs for $12 each. used DVDs sell for $7 each. Joseph is buying two new DVDs and X used DVDs. write an equation that can be used to find X, the total Joseph must pay in dollars
Mathematics
middle-school
ClayMontgomery
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Used DVDs = x
Total = t
t = 12(2) + 7x
t = 24 + 7x
t - 24 = 7x
(t - 24) / (7) = x
If given the total, you can plug it in to variable t and then work the right side of the equation to isolate variable x and solve to find its value.
Imat
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Apr 25, 2018
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Imat
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Given that new DVDs are selling for $12 and used for $7, then Joseph is buying:
12
·
2 + 7
x
=
Frosty
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Apr 30, 2018
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