5x - 2x + 4 = 83x + 4 = 83x = 4x = 4/3
(7 - 8/4)2 + 1/3 + 14/(2/5 - 3/4)(7 - 2)2 + 1/3 + 14/(2/5 - 3/4)5*2 + 1/3 + 14/((8/20) - (15/20))10 + 1/3 + 14/(-7/20)10 + 1/3 - 280/710 + 1/3 - 4010 + 1/3 - 120/310 + 1/3 - 40/310 + (1 - 40)/310 - 39/310 - 13-3
Ответ: -3
5x - 2x + 4 = 8
3x + 4 = 8
3x = 4
x = 4/3
(7 - 8/4)2 + 1/3 + 14/(2/5 - 3/4)
(7 - 2)2 + 1/3 + 14/(2/5 - 3/4)
5*2 + 1/3 + 14/((8/20) - (15/20))
10 + 1/3 + 14/(-7/20)
10 + 1/3 - 280/7
10 + 1/3 - 40
10 + 1/3 - 120/3
10 + 1/3 - 40/3
10 + (1 - 40)/3
10 - 39/3
10 - 13
-3
Ответ: -3