Question

In cele doua zile Mihai a cheltuit x+35 unde x este suma cheltuita in prima zi 30 supra 100•(x+35)=x
X=15lei
Ajutorr?!? Va roggff!!!

Answer 1

x=30/100 × (x+35)
100x=30x+1050
70x=1050
x=15 lei

suma cheltuita in 2 zile :15+35=50 lei

Answer 2

$Rezolvare: a= \frac{30}{100}*(a+35) \\ 100a=30*a+30*35 \\ 100a=30a+1050 \\ 100a-30a=1050 \\ 70a=1050 \\ a=1050:70 \\ a=15~lei \\ Suma~cheltuita~in~doua~zile~este:50~lei(15+35)$