Oblicz układ równań metodą podstawiania: 3x+4y= -5 -2x+y= -4 Daje NAJ
3x + 4y = -5
-2x + y = -4 stąd y = -4 + 2x
3x + 4(2x - 4) = -5
3x + 8x - 16 = -5
11x = 11
x = 1
y = -4 + 2x
y = -4 + 2 = -2
odp.
y = -2
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Pozdrawiam :)
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3x + 4y = -5
-2x + y = -4 stąd y = -4 + 2x
3x + 4(2x - 4) = -5
3x + 8x - 16 = -5
11x = 11
x = 1
y = -4 + 2x
y = -4 + 2 = -2
odp.
x = 1
y = -2
----------------------------------------------------------------------------------------------------------
Feci, quod potui, faciant meliora potentes
Pozdrawiam :)