Answer :

altavistard
You'll need to isolate 9a on the left side of this equation
Please add 7 to both sides of the eqn, obtaining 9a = 117.

Solve for a by dividing both sides by 9:  a = 117/9 = 13 (answer)
[tex]9a-7=110[/tex] 

[tex]9a=110+7 [/tex] 

[tex]9a=117 [/tex] 

[tex]a= \dfrac{117}{9} [/tex] 

[tex]a=13[/tex]

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