Respuesta :

Answer:

31

Method:

X + 21 = 52 is the same as 52 - 21 = x. 52 - 21 = 31 so x = 31

danieljuliusstein
The equation is x + 21 = 52

In algebraic equations, you always want to isolate the variable (x) so To do that you would subtract 21 from both sides, and then you would do 52 - 21 = 32

x + 21 = 52
-21 = -21
x = 31

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