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Please Evaluate this algebra expression -4 -3?
-2-3=+7
What is the answer y -3x 4?
The expression "y - 3x + 4" is not a question, but rather a mathematical expression. It represents a combination of variables (y and x) and constants (3 and 4) connected by addition and subtraction operations. The final value of this expression will depend on the specific values assigned to the variables y and x. To simplify or evaluate this expression further, specific values for y and x would need to be provided.
Evaluate the expression Where necessary enter your answer as a fraction using the slash as the fraction bar 6 - 58 1 010?
21+1654+4
What is the value of the expression when x 4?
(21-3)times(7+4)
What do you call replacing a variable in an expression by a number?
A variable is a letter that represents a number. An expression that contains at least one variable is called variable expression, also called algebraic expression. A variable expression has one or more terms. A term is a number, a variable, or a product of numbers and variables. For example,3(x^2)y + 2xy + x - 7 is a variable expression, where you have 4 terms.When working with variable expression, you often use the substitution principle:If a = b, then a may be replaced by b in any expression.The set of numbers that a variable may be represent is called replacement set, or domain, of the variable. To evaluate a variable expression, you replace each variable with one of its values and simplify the numerical expression that results.Example: Evaluate the expression 2x - 4y for x = 5 and y = -9.Solution:2x - 4y= 2(5) - 4(-9)= 10 + 36=46
