1.diketahui matriks a. 4 -6 8 2 b.m+n 6 m+l L c.16 0 10 1 jika a+b=c tentukan nilai m+n+L=?

[tex] \left[\begin{array}{ccc}4&-6\\8&2\end{array}\right] [/tex] + [tex] \left[\begin{array}{ccc}m+n&6\\m+1&L\end{array}\right] [/tex] = [tex] \left[\begin{array}{ccc}16&0\\10&1\end{array}\right] [/tex]

8 + m + 1 = 10
9 + m = 10
m = 1

4 + m + n = 16
4 + 1 + n = 16
5 + n = 16
n = 11

-2 + L = 1
L = 3

m + n + L =  1 + 11 + 3 = 15