Răspuns :
a)
5z+3x+4y = 59 - 27
5z+3x+4y = 32
b)
x-2y+13=52 / x3
3x - 6y + 39 = 156
3x - 6y + 1 + 38 = 156
3x - 6y +1 = 156 -38
3x -6y + 1 = 118
5z+3x+4y = 59 - 27
5z+3x+4y = 32
b)
x-2y+13=52 / x3
3x - 6y + 39 = 156
3x - 6y + 1 + 38 = 156
3x - 6y +1 = 156 -38
3x -6y + 1 = 118
3x+4y+5z+27=59
3x+4y+5z=59-27
3x+4y+5z=32
x-2y+13=52
x-2y=52-13=39
3x-6y+1=39×3+1=119
1...9->9 cifre
10...99->(99-9)×2=180 cifre
100...200->(200-99)×3=303 cifre
9+180+303=492 cifre are numărul x
.
3x+4y+5z=59-27
3x+4y+5z=32
x-2y+13=52
x-2y=52-13=39
3x-6y+1=39×3+1=119
1...9->9 cifre
10...99->(99-9)×2=180 cifre
100...200->(200-99)×3=303 cifre
9+180+303=492 cifre are numărul x
.