Respuesta :
Hi!
Whatever we do to the equation, we do to both sides. Our goal is to isolate x on one side.
First, simplify.
x + 73 = 400 - 27
x + 73 = 373
Now, subtract 73 from both sides.
x + 73 - 73 = 373 - 73
x = 300
The answer is x = 300
Hope this helps! :)
-Peredhel