w + 2.5 = 3.8
1/2x=-5
19=(8xn)+3
111,111,111 * 111,111,111
I don't see an equation. An equation must have an equal sign. For a question in answers.com, you'll have to write the word "equals", since symbols get lost.
3Y - 2 = X + 5 This presumes "a number" and "x" are two separate values. If they are the same number, the equation would be 3X - 2 = X + 5. In this equation, X = 3.5.
1/2x=-5
simplify it first..an equal signExpressed as a decimal number
That sounds like: if you multiply it by 16, the result is the same as if you add 225 to it. You can write this as an equation - calling the number "x" - as follows: 16x = x + 225 Solve this equation, and you have your number.
Expressed as an equation, this would be equal to 13x - 3.
7+N=9
19=(8xn)+3
In pyramids, faces equal vertices. 5 = 5
111,111,111 * 111,111,111
Yes. Any number, or expression, is equal to itself. An equation such as:x + 5 = x + 5 is true for ANY value of "x".
4x+x+18 = 14
I don't see an equation. An equation must have an equal sign. For a question in answers.com, you'll have to write the word "equals", since symbols get lost.
Call your number any variable, for example x. Then: "A number": x "The opposite of a number": -x "Is": the equal sign. "The opposite of a number is -9": -x = -9