1. 4x - 2y = -2, 2x + y = 11 2. 5x - y = 8, 2x + 3y = 27 3. 2y - x = 10, 3x + 2y = 22 4. 3x - 2y = 7, 2x + y = 14
Matematika
AmDel
Pertanyaan
1. 4x - 2y = -2, 2x + y = 11
2. 5x - y = 8, 2x + 3y = 27
3. 2y - x = 10, 3x + 2y = 22
4. 3x - 2y = 7, 2x + y = 14
2. 5x - y = 8, 2x + 3y = 27
3. 2y - x = 10, 3x + 2y = 22
4. 3x - 2y = 7, 2x + y = 14
1 Jawaban
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1. Jawaban rahmi30011
[tex]no 4 \\ jawab \\ 3(2) - 2y = 7 \\ 6 - 2y = 7 \\ 2y = 7 - 6 \\ 2y = 1 \\ y = 2 \div 1 \\ y = 2 [/tex]
3x-2(-1) =7
3x +2 =7
3x =7-2
3x =5
x= 5:3
x=1,6