explain how to evaluate an algebraic expression for given variables. how would we evaluate the expression "3x-4y+9" when x=2and y=5?
You have to substitute a value for the letter variable in the expression. This is what we call evaluating the algebraic expression. An example would be 3x+1=7, when x=2.
1/2 (x+y)
x^2 plus 16y?
an algebraic expression has no = sign. it could be like x+4, but an equation has to have an = sign. like x+4=5
Given a value of x, find the value for -3x + 2
explain how to evaluate an algebraic expression for given variables. how would we evaluate the expression "3x-4y+9" when x=2and y=5?
x-2
No. That is because 2 - 8x is an algebraic expression, not an equation. And since it is not an equation, it does not have a solution.
It would be -2 - x .
3x
They are two terms of an algebraic expression.
If the algebraic expression can be written in the form of a(x)/b(x) where a(x) and b(x) are polynomial functions of x and b(x) ≠0, then the expression is a rational algebraic expression.
The algebraic expression for eleven subtracted from X is: X - 11
x+2=
It is an algebraic expression that can be simplified to: 7-x
It is two terms of an algebraic expression in the form of: x-15y