Matrix (2 by 2) exam question... Request by Sally from Kitwe

Join our whatsapp group where you can have a chance to do a request..0969175701

[jacobsichambaonlinemath]

There is a mistake on the addition of 4+2=6 so the value of x=6

[chipegomunyati]

Isn't the value of x supposed to be -6 because when we add 4 and 2 we get 6

[febbychiti]

Sir determint is already given is 4 not 7
7 is a value of x

[chipegomunyati]

Ok its fine sir I have seen that it was a mistake

[PeterLukamaLimataFulela]

Grouping the right terms, supposed to be x-2x=4+2
Answer should be -x=6