Question 152496
x=pints of 9%
coefficient=percent


9x+13(10)=11(10+x)


Distribute

9x+130=110+11x


Subtract 9x from both sides
130=110+2x


Subtract 110 from both sides
20=2x


Divide both sides by 2
10=x


x=pints of 9%
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Answer: 10 pints of 9%