Equations, SMB-003 `6(3a+4)-12=8a-18` What value of `a` makes this equation true? (2 marks) Show Answers Only `a=-3` Show Worked Solution `6(3a+4)-12` `=8a-18` `18a+24-12` `=8a-18` `10a` `=-12-18` `10a` `=-30` `:.a` `=-3`