Why is replacement or substitution important in math

- Solve the following system by
**substitution**. 2 x − 3 y = −2. 4 x + y = 24. The instructions tell me to solve "by**substitution**". This means that I need to solve one of the equations for one of the variables, and plug the result into the other equation in place of the variable I've solved for. - Answer (1 of 12): In Algebra, this is when you substitute one of your variables for another variable in the one of two equations (also called systems of linear equations). For instance: x-3y=7 -2x+6y=6 To solve this problem, we can use the following steps: 1. Solve for one of the variables x-...
- Jan 10, 2019 ·
**Substitution**Method: This method involves isolating for one variable (x/y) of Line 1 then substituting that variable into Line 2. This will allow you to isolate and solve for the other variable (y/x). Once you have the x- and y- coordinates, you then have the solution which is the point of intersection between the two lines. Line 1: y = 6 ... - The first statement here could be replaced by ANY statement about b; it is very general. Transitivity is a little more formal; it is one of a set of properties (relexivity, symmetry, and transitivity) used to define the concept of "equivalence relation" (of which equality is one example).It also has a more specific definition than
**substitution**; it only applies when we have two equalities: a ... - ADVERTISEMENTS: The concept of
**substitution**effect put forward by J.R. Hicks. There is another**important**version of**substitution**effect put forward by E. Slutsky. The treatment of the**substitution**effect in these two versions has a significant difference.