2 x + 3 - (2 - x) = 4 x-1
-8x-6y=6
1757658
27264068
23813132
4285620
5478136
10073179
10768679.2111435
2111435
176464.1898
.2111435
1820402.49...
45 + 10x = 75-10x
107686792111435
1820402.493...
45 + 10x = 75- 10x
ta $a_{b}$
