Question

20x-5-5x+4x-6=4x+12

Answer 1

20х-5х+4х-4х=12+5+6
15х=23
х=23/15

Answer 2

20x-5 - 5x +4x-6=4x+12
20x-5x+4x-4x = 12+5+6
15x = 23 :15
x= 2315 
или
x= 1 целая 815