SigneJ684537 SigneJ684537
  • 25-10-2022
  • Mathematics
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may ou solve the system of linear equations by substitution

may ou solve the system of linear equations by substitution class=

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IdalieF309223 IdalieF309223
  • 25-10-2022

y= 11 + 4x

3x +2y = 0

Put the first equation into the second one. (replace the value of y)

3x +2 (11 + 4x) = 0

Solve for x:

3x + 22 + 8x = 0

3x+8x = -22

11x = -22

x = -22/11

x = -2

Replace x=-2 in the first equation and solve for y

y= 11 + 4 (-2)

y= 11-8

y= 3

Solution:

x= -2 , y=3

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