Asked by milly

jane had $7 and her sister had $2. their parents gave each of them an equal amount of money. then, jane had twice as much money as her sister. how much money did their parents give each of them
Answered by Reiny
after the giving:
jane --- 7+x
sister --- 2+x

now jane has twice as much as her sister.

7+x = 2(2+x)
7+x = 4 + 2x
-x = -3
x=3

They each got $3.00

check:
jane now has 10
her sister has 5,
does Jane have twice as much as the sister ???
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