Question

решите уравнение 13(x-13)+ 14(14x-2)=11(3x-11)+ 28 +(10x-21)

Answer 1

13х - 169 + 196х - 28 = 33х - 121 + 28 + 10х - 21
13х + 196х - 33х - 10х = 169 + 28 - 121 + 28 - 21
166х = 83
х = 83/166
х = 0.5