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25-06-2019
Mathematics

contestada

Find the value of Q in the following system so that the solution to the system is (2,3)
x-2y=-4
3x+5y=Q

Respuesta :

05-07-2019

Answer:

Q = 21

Step-by-step explanation:

[tex]\left\{\begin{array}{ccc}x-2y=-4&(1)\\3x+5y=Q&(2)\end{array}\right\\\\\text{From (2, 3), put x = 2 and y = 3 to (2):}\\\\Q=3(2)+5(3)=6+15=21[/tex]

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