Calcule o valor de x e y nas seguintes igualdades:
![\left[\begin{array}{ccc}-3&x\\4&-1\\\end{array}\right] + \left[\begin{array}{ccc}y&-5\\3&1\\\end{array}\right] = \left[\begin{array}{ccc}8&1\\7&0\\\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-3%26amp%3Bx%5C%5C4%26amp%3B-1%5C%5C%5Cend%7Barray%7D%5Cright%5D+%2B+%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Dy%26amp%3B-5%5C%5C3%26amp%3B1%5C%5C%5Cend%7Barray%7D%5Cright%5D+%3D+%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D8%26amp%3B1%5C%5C7%26amp%3B0%5C%5C%5Cend%7Barray%7D%5Cright%5D "\left[\begin{array}{ccc}-3&x\\4&-1\\\end{array}\right] + \left[\begin{array}{ccc}y&-5\\3&1\\\end{array}\right] = \left[\begin{array}{ccc}8&1\\7&0\\\end{array}\right]")
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Ola Raina
-3 + y = 8
y = 11
x - 5 = 1
x = 6
-3 + y = 8
y = 11
x - 5 = 1
x = 6
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