SOLUTION: thirty pesos less than 1/2 of kim's weekly allowans is 400 pesos. how much is Kim's weekly allowance?

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Question 840514: thirty pesos less than 1/2 of kim's weekly allowans is 400 pesos.
how much is Kim's weekly allowance?
Answer by LinnW(1048) About Me  (Show Source):
You can put this solution on YOUR website!
a = amount of allowance
(1/2)a - 30 = 400
add 30 to each side
(1/2)a = 430
multiply each side by 2
a = 860