They are unknowns, or placeholders. The actual x and y are not significant. You could use any letter that you wanted, but the x and y are traditionally used so that everyone knows what they are.
In algebra we consider x,y and z are variables.
The answer to the equation y x - x a would be x(y-1). When letters are used in a math expression, this is a form of math called Pre-Algebra or Algebra.
It equels 10* * * * *The answer depends on the values of x and y.
y=x-2 y=x+4
It is simply: yx which in algebra means y times x
Given two numbers, x and y their difference is |x - y|. |x - y| = x - y if X ≥ y and |x - y| = y - x if x < y
() x=y(x)xy(x)(x)=() (). X=
well u have to find out the values of x and y first to answer it! =)
x+y=6 x-y=4
12 (x is -3)
y=2x x+Y=12
algebra