Alondra111563
Alondra111563 Alondra111563
  • 16-01-2020
  • Mathematics
contestada

What it's A in -5a-2(-7a-10)=128​

Respuesta :

cinderofsoulsss
cinderofsoulsss cinderofsoulsss
  • 16-01-2020

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:

[tex]a=12[/tex]

Answer Link
ravencure ravencure
  • 16-01-2020

Your answer will be 3

Answer Link

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