(a + b) + c = a + (b + c) so that either can be written as a + b + c That is, the order in which these operations are carried out does not matter.
The Pythagoream Thereom is a^2 + b^2 = c^2. Written out it is a squared plus b squared equals c squared.
x = (c - b)/a in a deliberately complicated form!
(a + b) + c = a + (b + c) so that either can be written as a + b + c That is, the order in which these operations are carried out does not matter.
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