no 14 sma 16, pakai caranya pliss

14. 20 - x + 17 - x + x + 9 = 32
46 - x = 32
x = 14
Yang suka wali = 20 - 14 = 6
Jawaban: C

16. -4a + b = 13
3a + b = -1
---------------------- -
-7a = 14
a = -2
-6 + b = -1
b = 5
f(x) = -2x + 5
f(-2) = -2(-2) + 5
= 4 + 5
= 9
Jawaban: B