answer this question of solving equation
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let the amount got by Lilian be x
and the amount got by Susan be 2x
from the question,
x+2x=30
i.e, 3x=30
x=10
so, Lilian got 10$
and Susan got 20$
and the amount got by Susan be 2x
from the question,
x+2x=30
i.e, 3x=30
x=10
so, Lilian got 10$
and Susan got 20$
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