Răspuns :
x-pretul initial % din x = 6/100 * x = 3/50x=3x/50 1 reducere
x -3x/50=(50x-3x)/50=47x/50 pret nou
a doua reducere e ca faci 1000/47x
x=1000x178,6/893
x=178600/893
x=200
x -3x/50=(50x-3x)/50=47x/50 pret nou
a doua reducere e ca faci 1000/47x
x=1000x178,6/893
x=178600/893
x=200
x - 6/100 × x = y
y- 5/100 × y = 178,6
y - 1/20y= 178,6 aducem la acelasi numitor
20y - y = 3572
y= 3572/19
y= 188
x - 3/50x = 188 aducem la acelasi numitor
50x - 3x = 9400
x = 9400/47
x = 200