Add using addition of matrice [-6 -2 1 ] + [-3 2 1]

[-9 0 2]

Step-by-step explanation:

Adding matricies is easy, you justadd the corresponding parts.  So the first entryof one matrix adds to the first entry of the other.  This does mean both matricies need to have the same numbers of columns and rows.  

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.

52 \43 i don't know this i tried