erikpaynee1985 erikpaynee1985
  • 10-11-2021
  • Mathematics
contestada

Solve the system of equations by elimination:4p + 4q = 44p - 4q = 28

Respuesta :

devishri1977
devishri1977 devishri1977
  • 10-11-2021

Answer:

p =9

q =2

Step-by-step explanation:

4p + 4q = 44  -----------(I)

4p - 4q = 28  -------------(II)

Add the equations and thus q will be eliminated and we can find the value of p.

(I)   4p + 4q = 44

(II)  4p -4q   = 28   {Now add}

     8p          = 72

       p = 72/8

p= 9

Plugin p =  9 in equation (I)

4*9 + 4q =44

36 + 4q = 44

     4q = 44 - 36

     4q = 8

        q = 8/4

q = 2

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