#1**0 **

Yes....substitution and elimination are two other methods...... or post on Web2.0 haha

Guest Feb 23, 2021

#2**0 **

__ 1. Graphing:__ graph the system of equations and find the intersection points, which are the solutions.

__ 2. Elimination__. As an example:

x + 2y = 3 . (1)

3x + y = 4 . (2)

You can eliminate one variable by multiplying equation (2) by 2:

x + 2y = 3

6x + 2y = 8

-----------------

-5x = -5

By subtracting the equations, we have eliminated one variable, thus solving for the other.

__ 3. Substitution.__ Let's use the same equations as last time. In equation (1), solve for x in terms of y:

x + 2y = 3 -----> x = 3 - 2y

Plug this in the other equation:

3x + y = 4

3(3 - 2y) + y = 4

Thus, we can solve for y, and in turn, solve for x.

CubeyThePenguin Feb 23, 2021