Respuesta :

3.4+0.5y +1.1=-4.5

3.4+1.1+0.5y= -4.5

4.5+0.5y=-4.5

move 4.5 to the other side

sign changes from +4.5 to -4.5

4.5-4.5+0.5y= -4.5-4.5

0.5y= -4.5-4.5

0.5y=-9

divide both sides by 0.5

0.5y/0.5= -9/0.5

Answer: y= -18