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leah has 3 fewer than 4 times as many DVD`s as sonia has. leah has 37 dvds. how many dvds does sonia have?

Sagot :

susxnn
x = sonias dvds

37 = 4x - 3
+3        +3

40 = 4x

10 = x

sonia has 10 dvds
iGreen
Make an equation:

L = 4S - 3

Where 'L' is the amount of DVD's Leah has and 'S' is the aount of DVD's Sonia has.

Plug in 37 for 'L' and solve for 'S':

37 = 4S - 3

Add 3 to both sides:

40 = 4S

Divide 4 to both sides:

S = 10

So Sonia has 10 DVD's.
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