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Question
Find X if Y =`[[3 2],[1 4]]`and 2X + Y =`[[1 0],[-3 2]]`
Solution
Given : `2X+Y =[[1 0],[-3 2]]`
`⇒ 2X + [[3 2],[1 4]]=[[1 0],[-3 2]]`
`⇒ 2X =[[1 0],[-3 2]]-[[3 2],[1 4]]`
`⇒2X=[[1-3 0-2],[-3-1 2-4]]`
`⇒ 2X =[[-2 -2],[-4 -2]]`
`⇒ X=1/2 [[-2 -2],[-4 -2]]`
`⇒X=[[-1 -1],[-2 -1]]`
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