<PRE><B>Question 821183</B>
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10x + 15y = 12*100
x + y = 100
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10x + 15y = 1200
x + y = 100
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x= 60 ml of 10%
y= 40 ml of 15%
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answer:
60 ml of 10%
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Solve systems of linear equations up to 6-equations 6-variables:
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