Question

a) Daca 2a + 3b + 35 = 48 , calculati 2a + 3b + 39
b) Daca 3a + 2b + 17 = 36 , calculati 6a + 4b + 47
c) Daca 2a + 5b + 23 = 51 , calculati 6a + 15b + 62
d) Daca 3a + 4b + 2c = 32 , calculati 8b + 53 + 4c + 6a

Answer 1

a)
2a+3b+35=48
2a+3b=48-35
2a+3b=13
2a+3b+39=13+39=52
b)
3a+2b+17=36
3a+2b=36-17
3a+2b=19(inmultim cu 2)
6a+4b=38
6a+4b+47=38+47=85
c)
2a+5b+23=51
2a+5b=51-23
2a+5b=28(inmultim cu 3)
6a+15b=84
6a+15b+62=84+62=146
d)
3a+4b+2c=32(inmultim cu 2)
6a+8b+4c=64
6a+8b+4c+53=64+53=117
Atentie! Daca numerele 8b+53+4c+6a sunt tot 6a+8b+4c+53 doar ca au fost schimbata (sensul) e tot aia