Question

Determinati nr. x si y stiind ca sunt indeplinite simultan conditiile : a) x-y= 100; b) x÷y=6rest 5

Answer 1

x-y=100
x:y= 6 rest 5  ⇒ x= 6×y +5

6y +5 -y = 100
5y + 5 = 100
5y = 100-5
5y= 95
y= 95:5
y=19

x-19 = 100
x= 100 +19
x= 119