If 
and 
find the matrix C such that A + B + C is a zero matrix
Given, A+B+C = zero matrix
We know that zero matrix is a matrix whose all elements are zero, so we have,
WE have A+B+C=0,
So C = -A+B,
1
If and find the matrix C such that A + B + C is a zero matrix
Given, A+B+C = zero matrix
We know that zero matrix is a matrix whose all elements are zero, so we have,
WE have A+B+C=0,
So C = -A+B,