Ccv + x + x = 225
The brilliant and witty Wikianswers auto-corrector will not allow me to capitalize the above Roman numerals, per standard usage. Sorry.
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2(x+y) is twice the sum of x and y, and 2x+y is the sum of twice x and y
This depends on what "x" is. The sum of the first x odd numbers is equal to x^2 or x*x.
The sum of 16 and x can be represented as 16 + x. This is an algebraic expression that combines the value of 16 with an unknown variable x. In order to find the sum, you would need to know the specific value of x. Without knowing the value of x, the sum remains as 16 + x.
0.75