Well, one solution is obtained by setting 16y'+55=22y'+55.
Since y = -5x + C, the second derivative is 0 and contributes nothing to the equation.
However, each of the equations can be solved independently, so I'm not sure how to solve them as a simultaneous set except as above.
Paul M.
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Good point. Sorry I have no additional suggestions.
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02/27/19
Claudio R.
I did get to that conclusion as well. However, when I put the obtained value back into either equation, this one does not add up to zero. (It is possible to work out the value of C by using the initial condition, i.e C=14)02/26/19