Answers

2014-10-15T21:21:04+08:00

You have to solve for x in 3x + 27 = 16; which would turn out to be x = -11/3

Second step, you substitute x in to x-2y = 7......

-11/3 - 2y = 7 ;   -2y= 7 + 11/3

-2y = 32/3

y = -16/3

x = -11/3

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