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Determine the number of solutions for this system of equations by inspection only. Explain.
7x+4y=
16 42x+24y
=110

Determine the number of solutions for this system of equations by inspection only Explain 7x4y 16 42x24y 110 class=

Respuesta :

Answer:

No solution (C)

Step-by-step explanation:

System of Linear Equations given :

  [1]    7x + 4y = 16

  [2]    42x + 24y = 110

Solve by Substitution :'

// Solve equation [2] for the variable  y

 [2]    24y = -42x + 110

 [2]    y = -7x/4 + 55/12

// Plug this in for variable  y  in equation [1]

  [1]    7x + 4•(-7x/4+55/12) = 16

  [1]    0 = -7/3 =>  NO solution

No solution (C)

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