william40033 william40033

27-03-2015
Mathematics

Answered

Please help me solve the system of equations y=2x-10 and x-y=7

Answer :

Panoyin Panoyin

03-04-2015

y = 2x - 10
x - y = 7
x - (2x - 10) = 7
-x - 10 = 7
    + 10 + 10
   -x = 17
      x = -17
-17 + y = 7
+ 17 + 17
   y = 24
(x, y) = (-17, 24)

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