Solve the matrix equation.

Question

love_to_love_you · Answer

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love_to_love_you · Answer

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amistre64 · Answer

how would you solve:  a-x = b

love_to_love_you · Answer

That's why I am asking this, I don't know really.

amistre64 · Answer

youve taken some basic algebra, they dont just throw these at you.

if you had a- x = b, how would you determine the value of x?

love_to_love_you · Answer

find a and b and plug them into the equation.

amistre64 · Answer

well, thats an idea .. 

how about, we add x to both sides and subtract b from both sides

a-b = x

love_to_love_you · Answer

oh.

amistre64 · Answer

now, since these area matrixes, and not just normal looking numbers.  you might wonder how we subtract one matrix from the other .. do you have an idea how to do that?

amistre64 · Answer

*are matrixes

amistre64 · Answer

any thoughts you can come up with are fine, i can correct them if need be.

amistre64 · Answer

if you know how to add 'like terms'; this is the same concept, but we are combining 'like parts'

a matrix has rows and cols, such that each element can be defined uniquely by its row/col.

Arow1col1 has a 'like part' with B,  Brow1col1

Arow2col1 has a 'like part' with B,  Brow2col1

etc ....

love_to_love_you · Answer

is it d?

amistre64 · Answer

i like d,   

3--2   -1-3
2 - 1    5--6

5 -4
1 11