Объяснение:
3x+5y = 0
3x= -5y
x1 = 5, x2 =0...
y1 = -3, y2 = 0...
3x + 21 = 0
3x = -21
x = -7
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Объяснение:
3x+5y = 0
3x= -5y
x1 = 5, x2 =0...
y1 = -3, y2 = 0...
3x + 21 = 0
3x = -21
x = -7