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Mihai a cheltuit o suma de bani in doua zile in prima zi a cheltuit 30% dun suma iar in a doua zi restul de 35 de leu calculati suma de bani cheltuita de mihai in prima zi

Răspuns :

30/100*x+35=x
3/10*x+35=x
3x+350= 10x
350=7x
x=50 ( suma cheltuita in total)

30/100*50= 15 lei ( suma cheltuita in prima zi)
Rezolvarea in atasament
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