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DᴀʀᴋPᴀʀᴀᴅᴏx

Add the like terms :

  • [tex] - 4a + ( - 9a)[/tex]

  • [tex] - 4a - 9a[/tex]

  • [tex] - 13a[/tex]
christopherallen

Answer:

-13a,

Step-by-step explanation:

(-4a)+(-9a)=-13a

You can solve this by breaking down the numbers and variables.

-4+-9=13

You can add the a's after the 13, giving you -13a.