Respuesta :

znjkda
21 is the correct answer
olemakpadu
(x - 3) - 5 = 13        Leave the term with x on the left hand side.

x - 3 - 5 = 13          When the sign crosses over the equality sign, it changes  

x  = 13 + 3 + 5

x = 21

I hope this helps.
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