7 3 w − 11 = 7 4 w ∣ ⋅ 7 3 w − 77 = 4 w − 77 = 4 w − 3 w w = − 77 A n s w er i s − 77.
The solution to the equation 7 3 w − 11 = 7 4 w is w = − 77 . We eliminated the fractions and isolated w step by step. Following the algebraic process leads us directly to the solution.
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======================================================Soal:Dela selalu membagi waktu belajar dan bermain dengan teratur.Rasio waktu belajar : waktu bermain = 3 : 1a. Jika Dela belajar selama 3 jam, berapa lama ia akan bermain?b. Jika Dela bermain selama 30 menit, berapa menit ia akan belajar?======================================================Jawaban:Diketahui rasio:Belajar : Bermain = 3 : 1------------------------------a. Dela belajar 3 jam Banding rasionya adalah 3 bagian belajar dan 1 bagian bermain.Artinya:3 bagian belajar = 3 jam → 1 bagian = 3 jam ÷ 3 = 1 jamMaka waktu bermain = 1 bagian = **1 jam**✅ Jawaban a: 1 jam------------------------------b. Dela bermain selama 30 menit Banding rasionya tetap 3 : 1 → 1 bagian bermain = 30 menitMaka:1 bagian = 30 menit → 3 bagian belajar = 3 × 30 = **90 menit**✅ Jawaban b: 90 menit = 1 jam 30 menit======================================================Kesimpulan:a. Jika belajar 3 jam, bermain 1 jam b. Jika bermain 30 menit, belajar 90 menit======================================================