Answer:
[tex]a=12[/tex]
Step-by-step explanation:
[tex]-5a-2(-7a-10)=128[/tex]
Distribute the -2:
[tex]-5a+14a+20=128[/tex]
Simplify:
[tex]9a+20=128[/tex]
Subtract 20 from both sides:
[tex]9a=108[/tex]
Divide both sides by 9:
Your answer will be 3
