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f(3)=9, 3a+b=9
subtitusikan
a=4, b=-3
f(-2)+f(2)
-11 +5 =-6
8. (p,-3) (-3,q) (2,-2) (-2,6)
2a+b=-2
-2a+b=6
subtitusikan
a=-2, b=2
-2p+2=-3, p=5/2
q=-2.-3+2=8
9. f(x)=-2x+3
f(-2) =7
f(3) =-3
f(a)=-7
-2a+3=-7, a=5
10. volume setelah 15 menit 75 liter
volume sebelum dialirkan
(50-25)/5 = 5
maaf kalo ada yg salah. kalo membantu jadikan yg terbaik ya