Question

Sa se determine A,B,C stiind ca:
5xA=50
C=6x6+3xA
2xAx3+2xB=C

Answer 1

5A=50=>A=50:5=>A=10

C=6x6+3x10=>C=36+30=>C=66

2x10x3+2B=66=>60+2B=66=>2B=66-60=>B=6:3=>B=2

Answer 2

5 x a = 50
a = 50 : 5
a = 10

c = 6 x 6 + 3 x a
c = 36 + 3 x 10
c = 36 + 30
c = 66

2 x a x 3 + 2 x b = c
2 x 10 x 3 + 2 x b = 66
60 + 2 x b = 66
2 x b = 66 - 60
2 x b = 6
b = 6 : 2
b = 3