If [ -3x 7 2y ] = [ 12 7 x+y ], what would the value of y be?
well, the elements must match, so
-3x = 12
7 = 7
2y = x+y
I think that you can take it from there, yes?
-3x = 12
7 = 7
2y = x+y
I think that you can take it from there, yes?