F(x)=4x-5 Tentukan: 1.f(x-1) 2.f(x+2) 3.f(2x-5) 4.tentukan nilai darj F(a-2)=(2a+1)

1.f(x-1)=4(x-1)-5
=4x-4-5
=4x-9
2.f(x+2)
=4(x+2)-5
=4x+8-5
=4x+3
3.f(2x-5)
=4(2x-5)-5
=8x-20-5
=8x-25
4.4(a-2)-5=2a+1
4a-8-5=2a+1
4a-13=2a+1
4a-2a=1+13
2a=14
a=7