sarahhhh99 sarahhhh99 05-10-2020 Mathematics contestada Solve each equation using the Properties of quality. Check your solutions 3. 4a + 3 =11 4. 8 =3r-1 6. 3x + 0.3 =3.3 5. 42=-2d+ 6 8. 9-c= -13 7. 15y + 31 =61