Out of all given equations, the following methods can be used to solve a system of equations:
- graphing
- substitution
- addition
Answer: Option B, C, and E
Explanation:
There are three methods of solving the system of equations as follows:
- Elimination (addition) method
- Graphic method
- Substitution method.
Substitution method: This involves solving one of the variable equations (depending on what you choose) and putting it back into the other equation and "substituting" for the selected variable and resolution for the second. Then solve the first variable again.
Elimination method: This method for solving systems of equations is also known as the addition method. To solve the equation systems by adding or subtracting from the equations to cancel out the common variables
Graphic method: It is used to find a solution to two linear equations. First, expand each equation by “y = ” or replace each equation by y = mx + b. Convert the equations to y = mx + b and prepare a function table.