Respuesta :

1) subtract 8 to both sides
2) a=5
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Answer:

[tex]\Huge \boxed{a=5}[/tex]

[tex]\rule[225]{225}{2}[/tex]

Step-by-step explanation:

[tex]8+a=13[/tex]

Subtracting 8 from both sides:

[tex]8+a-8=13-8[/tex]

[tex]a=5[/tex]

[tex]\rule[225]{225}{2}[/tex]

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