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2x-5y+1 = 0 ----> 2x - 5y = -1 lx3 l 6x -15y = -3
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23y = 23
y = 1
3x + 4y = 10
3x + 4 (1) =10
3x + 4 = 10
3x = 10-4
3x = 6
x = 2