Question

Afla suma numerelor a, b , c , stiind ca sunt indeplinite simultan conditiile : b=100; b-a=c-b

Answer 1

a + b + c = 
2b = a + c
b = 100
2 * 100 = a + c
a + c = 200
a + c + b = 200 + 100
a + b + c = 300