Question

23-7(3х-1)-3(Х+1)=0;

Answer 1

23 - 7(3х - 1) - 3(х + 1) = 0
23 - 21х + 7 - 3х - 3 = 0
-24х + 27 = 0
-24х = -27
х = 1,125
Ответ: 1,125

Answer 2

23-7(3х-1)-3(х+1)=0
раскроем скобки
23-21х+7-3х-3=0
23+7-3-21х+3х=0
27-24х=0
-24х=-27
х=-27:(-24)
х=9/8 или 1 1/8