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The matrices x + 2y , 3 ; 4 , x - y and 7 , 3 ; 4 , 1… | StemPy Lab

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The matrices x + 2y , 3 ; 4 , x - y and 7 , 3 ; 4 , 1 are equal. What is x + y?

MathematicsMediumHigh School (11–12)Algebra › Matrices and Determinants A-Level AEEE (Amrita)AMUEEE AP EAPCET BCECE COMEDK UGET CUET UG GUJCET IB JCECE JKCET KCET KEAM KIITEE LPUNEST MET (Manipal)MHT-CET OJEE SRMJEEE TS EAPCET UPESEAT VITEEE

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The matrices $\begin{bmatrix} x + 2y & 3 \\ 4 & x - y \end{bmatrix}$ and $\begin{bmatrix} 7 & 3 \\ 4 & 1 \end{bmatrix}$ are equal. What is $x + y$ ?

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← Two stock tables are A = 2 , -1 ; 0 , 5 and B = 3 , 4 ; -2 , 1 . Find the matrix 2B - A.A is a 3 × 2 matrix and B is a 2 × 4 matrix. Which statement is true? →

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