Respuesta :
2b+8-5b+3=-13+8b-5
8-5b+3=-13+8b-5-2b
8-5b+3=-13+6b-5
8+3=-13+6b-5+5b
8+3=-13+11b-5
8+3=-18+11b
11=-18+11b
29=11b
b=2.63
2b+8-5b+3=-13+8b-5
8-5b+3=-13+8b-5-2b
8-5b+3=-13+6b-5
8+3=-13+6b-5+5b
8+3=-13+11b-5
8+3=-18+11b
11=-18+11b
29=11b
b=2.63