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Given this: 2x+3y=12 and 2x-2y=2 , what is the value of x+y?

Apr 13th, 2015

 2x+3y=12 and 2x-2y=2

2x=12-3y

  subsitute this value of 2x in the  equation,2x-2y=2

12-3y-2y=2

12-5y=2

-5y=-10

y=2.....................................ANSWER


now put this value of y in  2x+3y=12

2x + 3*2 =12

2x =6

x=3.....................................ANSWER


so x=3 and y =2

NOW 

    x+y=3+2

           =5.........................................ANSWER

 x+y=5.........................


HOPE YOU UNDERSTOOD.............PLEASE MESSAGE IS YOU HAVE DOUBTS...THANK YOU

Apr 13th, 2015

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Apr 13th, 2015
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