alliahal
alliahal alliahal
  • 22-08-2022
  • Mathematics
contestada

solve using substituiton method

solve using substituiton method class=

Respuesta :

culveryolanda46
culveryolanda46 culveryolanda46
  • 22-08-2022

Step-by-step explanation:

Since the equations will have a different slope, there must lie only one solution so the 1st two options are wrong.

Let solve using substitution

[tex]d = e + 4[/tex]

[tex]e + 4 + e= 2[/tex]

[tex]2e + 4 = 2[/tex]

[tex]e = - 1[/tex]

Plug this back in for one of the equations,

[tex]d - e = 4[/tex]

[tex]d - ( - 1) = 4[/tex]

[tex]d + 1 = 4[/tex]

[tex]d = 3[/tex]

So the solution is (3,-1).

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