Answer :
Answer: [tex]a=-1/2[/tex]
Simplify both sides of the equation
[tex]14a=2(a-3)[/tex]
[tex]14a=(2)(a)+(2)(-3)[/tex] [tex](Distribute)[/tex]
[tex]14a=2a+-6[/tex]
[tex]14a=2a-6[/tex]
Subtract 2a from both sides
[tex]14a-2a=2a-6-2a[/tex]
[tex]12a=-6[/tex]
Divide both sides by 12
[tex]12a/12=-6/12[/tex]
Final Answer: [tex]a=-1/2[/tex]