Solve the system by substitution . 2x+y=-11 3x-4y=11
(3,5)
(-5,-3)
(-3,-5)
(5,3)

Question

25-09-2017
Mathematics

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Solve the system by substitution . 2x+y=-11 3x-4y=11
(3,5)
(-5,-3)
(-3,-5)
(5,3)

Respuesta :

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texaschic101 texaschic101 · Answer 1 · 2017-09-25T05:09:24+02:00

texaschic101 texaschic101

25-09-2017

2x + y = -11
y = -2x - 11

3x - 4y = 11
3x - 4(-2x - 11) = 11
3x + 8x + 44 = 11
11x = 11 - 44
11x = - 33
x = -33/11
x = -3

y = -2x - 11
y = -2(-3) - 11
y = 6 - 11
y = - 5

solution is (-3,-5) <==

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Solve the system by substitution . 2x+y=-11 3x-4y=11 (3,5) (-5,-3) (-3,-5) (5,3)

Respuesta :

Otras preguntas

Solve the system by substitution . 2x+y=-11 3x-4y=11
(3,5)
(-5,-3)
(-3,-5)
(5,3)