A variable is a number that isn't fixed, it can be anything. So in this situation x and y are the variables.
Chat with our AI personalities
It may be a linear function in two variables.
It depends on what you mean by "solving", with two unbound variables (x and y) you will be able to produce a two-dimensional x/y plot: 2x+y=4 means y=4-2x
The expression goes like this: 2x+y+5-3. x and y are variables so we cannot perform unless we have a linear or simultaneous or as such equations.But operation can be performed if like terms are present, but in your problem the answer will be: 2x+y+2
you need 2 equations to solve for 2 variables
Y = 2x-5 and Y = 2x plus 7 is a linear system which intersects at points (-2,2)