metode subtitusi 2x-3y=11dan3x+y=0 Pliss jawab
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metode subtitusi 2x-3y=11dan3x+y=0
Pliss jawab
Pliss jawab
1 Jawaban
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1. Jawaban 01ABC
[tex]2x \: - \: 3y \: = \: 11 \\ 9x \: + \: 3y \: = \: 0 \\ - - - - - - - \: \: + \\ 11x \: = \: 11 \\ x \: = \: 1 \\ \\ 2x \: - \: 3y \: = \: 11 \\ 2 \times 1 \: - \: 3y \: = \: 11 \\ 3 \: - \: 3y \: = \: 11 \\ - 3y \: = \: 8 \\ y \: = \: - \frac{8}{3 } [/tex]