Răspuns :
y este egal cu... y
adica 1 *y
adica 100y/100
adica 4*25y/100
adica 4* (25% din y) =4*17=68
altfel 25y/100=y/4
y/4=17
y=4*17
y=68
adica 1 *y
adica 100y/100
adica 4*25y/100
adica 4* (25% din y) =4*17=68
altfel 25y/100=y/4
y/4=17
y=4*17
y=68
[tex]\frac{25}{100}\cdot y=17\\
\frac{1}{4}y=17\\
y=17\cdot 4=68[/tex]