Buttons

Men's shirt has sewn 9 buttons and blouse 3 buttons. Together they sewed 60 pieces and consumed 390 buttons. How many shirts?

Correct result:

k =  35

Solution:


60=k+h
390= 9k+3h

60=k+h
390= 9•k+3•h

h+k = 60
3h+9k = 390

h = 25
k = 35

Our linear equations calculator calculates it.



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