What is the solution of the system of equations #3x+5y = -1# and #2x - 5y = 16#?

1 Answer
Shwetank Mauria
Mar 5, 2016

#x=3#, #y=-2#

Explanation:

As the system of equations #3x+5y=−1# and #2x−5y=16# has coefficients of #y# equal but opposite in sign, just adding them gives us

#5x=-1+16=15# or #x=15/5=3#

Putting this in first we get

#3xx3+5y=-1# or #5y=-1-9=-10# or #y=-2#

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