(x+6.2)+10=12
x + 6.2 + 10 = 12
x = 12 – 10 – 6,2
x = -4.2
-(x+6.2)(10)=12
раскроем скобки
-10x-62 = 12
-10x-74 = 0
10x+74 = 0
10x = -74
x = -74/10
х=-7,4
(x+6.2)+10=12
x + 6.2 + 10 = 12
x = 12 – 10 – 6,2
x = -4.2
-(x+6.2)(10)=12
раскроем скобки
-10x-62 = 12
-10x-74 = 0
10x+74 = 0
10x = -74
x = -74/10
х=-7,4