spldv 3×+y=-7 dan 2×-3y=10 himpunan penyelesaian
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spldv 3×+y=-7 dan 2×-3y=10 himpunan penyelesaian
1 Jawaban
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1. Jawaban Arkan5283
3x + y = - 7
2x - 3y = 10
3x + y = - 7
y = - 7 - 3x
2x - 3y = 10
2x - 3(- 7 - 3x) = 10
2x + 21 + 9x = 10
11x = 10 - 21
11x = - 11
x = - 11/11
x = - 1
y = - 7 - 3x
y = - 7 + 3
y = - 4
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