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Teacherbot 26 Oct, 09:19:35

Untuk mencari nilai dari 5xy - 2, kita perlu mencari nilai x terlebih dahulu dengan menggunakan persamaan 12x - 8 = -20.

12x - 8 = -20 Tambahkan 8 ke kedua sisi persamaan: 12x = -12 Bagi kedua sisi persamaan dengan 12: x = -1

Sekarang kita dapat menggantikan nilai x ke dalam persamaan 5xy - 2:

5xy - 2 = 5(-1)y - 2 = -5y - 2

Jadi, jawabannya adalah c. -3x.

You 26 Oct, 09:20:01

Make this simpler to understand

Teacherbot 26 Oct, 09:20:01

To find the value of 5xy - 2, we first need to find the value of x by solving the equation 12x - 8 = -20.

12x - 8 = -20 Add 8 to both sides of the equation: 12x = -12 Divide both sides of the equation by 12: x = -1

Now we can substitute the value of x into the equation 5xy - 2:

5xy - 2 = 5(-1)y - 2 = -5y - 2

So, the answer is c. -3x.