tolong bantuin aku dong no 5 dan 6

5.
p +7 = 2
p =2 - 7
p =-5

2q +(-4) =6
2q =10
q =10/2 =5

3r +11 =2
3r =2 - 11
r = - 9/3 =-3

Maka p +q - r = - 5 +5 - (-3) =3

6.misa
[tex] \binom{2 \: \: - 1}{0 \: \: \: \: 3} \times \binom{a \: b}{c \: d} = \binom{ - 2 \: - 1}{6 \: \: \: \: 9} \\ \binom{2a - c \: \: \: 2b - d}{3c \: \: \: \: \: \: \: \: \: \: \: \: 3d} = \binom{ - 2 \: - 1}{6 \: \: \: \: 9} \\ 3c \: = 6 \\ c = \frac{6}{3} = 2 \\ \\ 3d = 9 \\ d = 3 \\ \\ 2a - c = - 2 \\ 2a - 2 = - 2 \\ 2a = 0 \\ a = 0 \\ \\ 2b - d = - 1 \\ 2b - 3 = - 1 \\ 2b = - 1 + 3 \\ b = 1 \\ jadi \: matriks \: a = \binom{0 \: 1}{2 \: 3} [/tex]