Respuesta :
3a-13=47
+13 +13 (You add 13 to both sides)
------------------
3a=60
/3 /3 (Then, divide by 3 to both sides)
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a=20
Hey there!
Explanation:
First, you had to do is add by 13 from both sides of an equation.
[tex]3a-13+13=47+13[/tex]
Then, simplify or add by the numbers.
[tex]47+13=60[/tex]
[tex]3a=60[/tex]
Next, you can also divide by 3 from both sides of an equation.
[tex]\frac{3a}{3}=\frac{60}{3}[/tex]
And finally, simplify and divide by the numbers,
[tex]60/3=20[/tex]
*The answer must have a positive sign.*
[tex]\boxed{a=20}[/tex]
Hope this helps!