Question

resolva a equaçao:
7y+5-y+8=31
por favor me ajudem

Answer 1

7y+5-y+8 = 31
7y-y+5+8-31 = 0
6y+13-31 = 0
6y-18 = 0
y= -18/6
y= -3

Answer 2

6y+13=31
6y=31-13
6y=18
y=18/6
y=3