Question

a + a + a = 12
b + a = 5
c - b = 99
a + b + c = ?

Answer 1

Rezolvare
a+a+a=12=>3a=12=>a=12:3=>a=4

b+a=5=>b+4=5=>b=5-4=>b=1

c-b=99=>c-1=99=>c=99+1=>c=100

a+b+c=4+1+100=5+100=105

Answer 2

a=12:3
a=4
b=5-4
b=1
c-1=99
c=99+1
c=100
a+b+c=4+1+100
=5+100
=105


Sper că te-am ajutat!