Diketahui rumus fungsi f(x) = 18 – 5x. Nilai dari f(2x + 3) =3 – 10xPembahasan:f(x) = 18 – 5xf(2x + 3) = 18 – 5(2x + 3) = 18 – 10x – 15 = 3 – 10x Share :