Question

A system of equations can be solved by which of the following methods? Select all that apply.

a.matrix method
b.forward method
c.back substitution
d.inverse method

Answer 1

a. matrix method

c. back substitution

Explanation:

If there are equations with multiple variables then we can use the substitution method to remove variables from the equations and solve them.

Matrix method is similar to the elimination method, we can represent the equations as matrix form as a ROW ECHELON MATRIX.