Math
posted by Larry .
The sum of the ages of a brother and sister is 27. If four times the brother's age is subtracted from three times the sister's age, the difference is 11. Express your answer in terms of the symbols b and s. 27=?

Just translate the English into "Math"
"The sum of the ages of a brother and sister is 27" > b+s=27
" if four times the brother's age is subtracted from three times the sister's age, the difference is 11"
> 3s  4b = 11
Solve
(I assume you know how to solve these two equations.) 
ask to your teacher.
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