![\left[\begin{array}{ccc}10.5\\10\\\end{array}\right]](/tpl/images/0704/0359/d035d.png)
+ 5![\left[\begin{array}{ccc}0\\3\\\end{array}\right]](/tpl/images/0704/0359/9cd81.png)
= 7t![\left[\begin{array}{ccc}21\\20\\\end{array}\right]](/tpl/images/0704/0359/97d5e.png)
+ ![\left[\begin{array}{ccc}0\\15\\\end{array}\right]](/tpl/images/0704/0359/985aa.png)
= 7t![\left[\begin{array}{ccc}21\\35\\\end{array}\right]](/tpl/images/0704/0359/77028.png)
= 7t , thus
![\left[\begin{array}{ccc}3\\5\\\end{array}\right]](/tpl/images/0704/0359/4a677.png)
Hi:) I need help with part 9(ii) ? Thanks :)!
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Answers: 2
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