C. Jawablah pertanyaan-pertanyaan berikut dengan jelas dan benar! 1. Diketahui sistem persamaan linier 3x + 4y = 7 dan -2x + 3y = -16. Tentukan: a. nilai x 2. b. nilai y C. nilai 2x - 7y Jawab: Harga 3 kg anggur dan 5 kg apel adalah Rp160.000,00 sedangkan harga 4 kg a​

y = 5 x − 4 f or x = 0 → y = 5 ( 0 ) − 4 = − 4 → ( 0 ; − 4 ) f or x = 2 → y = 5 ( 2 ) − 4 = 10 − 4 = 6 → ( 2 ; 6 )

Answered by Anonymous | 2024-06-10

I have provided my work in the image attached.

Answered by TheBlueFox | 2024-06-24

To graph the line y = 5 x − 4 , plot the y-intercept at ( 0 , − 4 ) and use the slope of 5 to find another point, such as ( 1 , 1 ) . Then, draw a line through both points, extending it in both directions. The result is a straight line representing the equation given.
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Answered by Anonymous | 2025-03-28

Jawaban:Mari kita jawab satu per satu.*1. Diketahui SPL (Sistem Persamaan Linear):* - 3x + 4y = 7 → (1) - -2x + 3y = -16 → (2) Langkah 1: EliminasiKita akan eliminasi salah satu variabel, misalnya x. Kalikan persamaan (1) dengan 2 dan persamaan (2) dengan 3 agar koefisien x sama:(1) × 2 → 6x + 8y = 14 (2) × 3 → -6x + 9y = -48 Jumlahkan:*(6x + 8y) + (-6x + 9y) = 14 + (-48)* → *17y = -34* → *y = -2*Langkah 2: Substitusi ke persamaan (1)3x + 4(-2) = 7 3x - 8 = 7 3x = 15 x = 5Langkah 3: Hitung nilai 2x - 7y 2x - 7y = 2(5) - 7(-2) = 10 + 14 = *24*Jawaban:a. x = 5 b. y = -2 c. 2x - 7y = 24Silakan lanjutkan bagian harga anggur dan apel jika ingin dibahas juga.

Answered by edyrianto2000 | 2025-08-24