Tentukan himpunan penyelesaian dari
4x-y = 7
3x+5y = 11
4x-y = 7
3x+5y = 11
yoyolaa
4x-y=7 | x3| 12x -3y = 21 3x +5y =11 |x4| 12x+20y =44 = (-3y =21)- (20y=44) 23y = -23 Y = -1 * 4x-y=7 4x -(-1) =7 4x = 7-1 4x=6 X=6/4=3/2
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