Asked by Nikki

Solve for x in the following matrix equation.
[5x-8 1] = [2 1]
[3 4m-1] [3 7m+6]

How do you do this? I hardly know anything about this... The packet I got that was supposed to help me understand matrices and stuff just made me more confused.
Answered by Steve
each element must be identical in the two matrices (you already have 1=1 and 3=3), so you just have to solve

5x-8 = 2
4m-1 = 7m+6

then use those values to fill in the unknown elements.
Answered by mason
since the two matrices are equal, corresponding elements of the matrices are also equal.
so : 5x -8 = 2
5x - 8 + 8 = 2 + 8
5x = 10
x = 2
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