What must be the matrix X if 2 X+\left[\begin{array}{cc}1 & 2 \ 3 & 4]\end{array}=\left[\begin{array}{cc}3 & 8 \ 7 & 2]\end{array} ?

\left[\begin{array}{cc}1 & 3 \ 2 & -1]\end{array}

\left[\begin{array}{cc}1 & -3 \ 2 & -1]\end{array}

\left[\begin{array}{cc}2 & 6 \ 4 & -2]\end{array}

\left[\begin{array}{cc}2 & -6 \ 4 & -2]\end{array}

KCET 2004 Math Solved Paper

Question : 18 of 60

Marks: +1, -0

What must be the matrix X if 2X+[

1	2
3	4

]=[

3	8
7	2

] ?

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1	3
2	−1

1	−3
2	−1

2	6
4	−2

2	−6
4	−2