Scalar Matrix Multiplication, Matrix Addition/Subtraction, Order of Matrices for 3 Given Matrices

Given 3 matrices A, B, and C, their orders (or dimensions) are found to be 2x3, 2x3, and 3x2. (a) Scalar multiplication is carried out when -2C is found. In parts (b) and (c) matrix addition/subtraction is investigated when 2A-3C and 2A-3B are analyzed.

Timestamps
0:00 Introduction
0:15 Order (or Dimension)
1:00 Find -2C
2:13 Find 2A-3C
3:26 Find 2A-3B