Jika X dan Y memenuhi sistem persamaan 5x -3y=20 dan 3x-5y=14 maka 6x - 4y+

tunggu saya berfikir dulu yaa

5x - 3y = 20 |5| 25x - 15y = 100
3x - 5y = 14 |3| 9x - 15y = 42
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............................. 16x = 58 => x = 58/16 = 29/8
5x - 3y = 20
5(29/8) - 3y = 20
145/8 - 20 = 3y
3y = -15/8
y = -5/8

6x - 4y = 6(29/8) - 4(-5/8) = 174/8 + 20/8 = 194/8 = 97/4 = 24 1/4 = 24,25