Persamaan
[tex] Nilai \: x\\ 2x + 4y = - 2 \\ - - - - - - - \div 2 \\ \: \: \: \: x + 2y = - 1 \\ \:5x - 2y = \: \: 19 \\ - - - - - - - + \\ \: 6x \: \: \: \: \: \: \: \: \: \: \: = \: \: 18 \\ x = \frac{18}{6} = 3 \\ \\ Nilai \: y \\ x + 2y = - 1 \\ x \: \: \: \: \: \: \: \: \: \: = \: \: \: \: 3 \\ ...................... - \\ \: \: \: \: \: \: \: 2y = - 4 \\ y = - \frac{4}{2} = - 2 \\ \\ 4x + 3y \\ 4(3) + 3( - 2) \\ 12 - 6 \\ 6 \: (a)[/tex]
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Persamaan
[tex] Nilai \: x\\ 2x + 4y = - 2 \\ - - - - - - - \div 2 \\ \: \: \: \: x + 2y = - 1 \\ \:5x - 2y = \: \: 19 \\ - - - - - - - + \\ \: 6x \: \: \: \: \: \: \: \: \: \: \: = \: \: 18 \\ x = \frac{18}{6} = 3 \\ \\ Nilai \: y \\ x + 2y = - 1 \\ x \: \: \: \: \: \: \: \: \: \: = \: \: \: \: 3 \\ ...................... - \\ \: \: \: \: \: \: \: 2y = - 4 \\ y = - \frac{4}{2} = - 2 \\ \\ 4x + 3y \\ 4(3) + 3( - 2) \\ 12 - 6 \\ 6 \: (a)[/tex]