hellohi151311
Answered

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Sally and Marta had the same number of postcards. After Sally sold
18 of her postcards, Marta had 4 times as many postcards as Sally.
How many postcards did each girl have to begin with?

Sagot :

aleenaasif720

Answer:

the equation x - 18 = 4(x - 18)

Step-by-step explanation:

x - 18 = 4x - 72

x - 4x = - 72 + 18

- 3x = - 54

x = 54/3

x = 18

Sally had 36 postcards to begin with (18 + 18)

martha had 0 postcards to begin with

i feel like i did something wrong someone double check this but i think this is the answer.

roajenifuja19

Answer:

x-18 = 4(x-18)

Step-by-step explanation:

x-18 =4x-72

3x =54

x=54/3

x=27

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