wolfplaygame01
wolfplaygame01 wolfplaygame01
  • 03-10-2017
  • Mathematics
contestada

1. Solve the system by substitution- 2x+y=-11, 3x-4y=11.
Answers are:
C
B
B
C
A

Respuesta :

spreadlight10 spreadlight10
  • 04-10-2017
In the first equation, moving 2x over gives "y = -2x-11". Placing this into the second equation gives "3x - 4(-2x-11) = 11", or "3x+8x+44 = 11", which can be reduced to "11x= -33" or "x = -3". Replacing the "x" with -3 in the first equation gives "-6 + y = -11" or "y = -5". This gives a solution of (-3, -5), or answer C.
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brejae51
brejae51 brejae51
  • 31-01-2022

Thank you so much T-T

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