Respuesta :
30+18h=25+20h
first subtract 25 from both sides
5+18h=20h
next subtract 18h from both sides
5=2h
divide both sides by 2 to isolate the variable
2.5=h
first subtract 25 from both sides
5+18h=20h
next subtract 18h from both sides
5=2h
divide both sides by 2 to isolate the variable
2.5=h