Question

PRETUL UNEI CARTI SE MICSOREAZA CU 16 LA SUTA SI COSTA 105 LEI. Care era pretul inainte de micsorare/

Answer 1

$x-\frac{16}{100} *x=105\\ \frac{100-16}{100} *x=105\\ \frac{84}{100} *x=105\\x=105* \frac{100}{84} \\x= \frac{10500}{84}\\x= 125$