k-y=7 5x-y=5 pake cara gabungan ​

cos(90° - x + 20°) = cos 42° 110° - x = 42° => x = 110° - 42° => x = 68°

Answered by pepe11 | 2024-06-10

Value of x is 68°
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Answered by aquialaska | 2024-06-12

The solution to the equation sin ( x − 2 0 ∘ ) = cos 4 2 ∘ is x = 6 8 ∘ . This is found using the relationship between sine and cosine. The other potential solutions do not fall within the given range of 0 to 90 degrees.
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Answered by aquialaska | 2024-08-21

Jawaban:Ringkasan soal Masalah:Selesaikan sistem persamaan linear dua variabel berikut menggunakan metode gabungan (eliminasi dan substitusi):x - y = 75x - y = 5 caranya:1. Eliminasi y:Kurangkan persamaan pertama dari persamaan kedua:(5x - y) - (x - y) = 5 - 74x = -2x = -2/4 = -1/22. Substitusi nilai x ke salah satu persamaan awal:x - y = 7(-1/2) - y = 7-y = 7 + (1/2)-y = 15/2y = -15/2 maka, solusi dari sistem persamaan tersebut adalah x = -1/2 dan y = -15/2.

Answered by ara1412 | 2025-08-24