Răspuns :
x - y = 372
x ÷ y = 4,63
x = 4 × y + 63
4y + 63 - y = 372
3y + 63 = 372
3y = 309
y = 309 ÷ 3
y = 103
x = 4y + 63
x = 103 x 4 + 63
x = 421 + 63
x = 475
x - y = 372
x ÷ y = 4,63
x = 4 × y + 63
4y + 63 - y = 372
3y + 63 = 372
3y = 309
y = 309 ÷ 3
y = 103
x = 4y + 63
x = 103 x 4 + 63
x = 421 + 63
x = 475