Question

(х+6.2)+10=12
-(х+6.2)10=12

Answer 1

1) х+6.2+10=12
х=12-6.2-10
х=-4.2
2) -(х+6.2)*10=12
-10х-62=12
-10х=12+62
-10х=74
х=-7.4

Answer 2

(х+6.2)+10=12
х+6.2+10=12
х= 12-6.2-10
х= -4.2

-(х+6.2)10=12
-10х-62=12
-10х=12+62
-10х=74
х= 74:(-10)
х= -7.4