Ответ:
Пошаговое объяснение:
2)
1) 4x+3y-11=11-11
4х + Зу -11=0
2) 3y=11-4x
y=11/3-4/3x
y= -4/3x+11/3
3) 4x=11-3y
x=11/4-3/4y
3)
a) y - x = -5 y = x - 5 y = x - 5 y = 3-5 y = -2
4x + y = 10 4x + x - 5 = 10 5x = 15 x = 3 x = 3
б) x + 2y - 5 = 0 | * (-3) -3x - 6y +15 = 0 x+2y-5 = 0
3x - 2y + 17 = 0 -8y +32 = 0 -8y = - 32
x+ 2*4 - 5=0 x = - 3
y = 4 y = 4
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Answers & Comments
Ответ:
Пошаговое объяснение:
2)
1) 4x+3y-11=11-11
4х + Зу -11=0
2) 3y=11-4x
y=11/3-4/3x
y= -4/3x+11/3
3) 4x=11-3y
x=11/4-3/4y
3)
a) y - x = -5 y = x - 5 y = x - 5 y = 3-5 y = -2
4x + y = 10 4x + x - 5 = 10 5x = 15 x = 3 x = 3
б) x + 2y - 5 = 0 | * (-3) -3x - 6y +15 = 0 x+2y-5 = 0
3x - 2y + 17 = 0 -8y +32 = 0 -8y = - 32
x+ 2*4 - 5=0 x = - 3
y = 4 y = 4