Question

determinati numerele intregi x,y,astfel încât (x+3)(y-1)=5​

Answer 1

(x+3)(y-1) = 5​

(x+3)(y-1) = 5​·1

x + 3 = 5 => x = 5 - 3 => x = 2

y - 1 = 1 => y = 1 + 1 => y = 2

Answer 2

(x+3)×(y-1)=5

x+3=5

x=5-3

x=2

2×(y-1)=5

5y-5=5

5y=5+5

5y=10

y=10:5

y=2

v: (2+3)×(2-1)=5

5 × 1 =5