Question 1203930
Use substitution to solve the system.
 x - 2y = 11
2x + 5y = -23
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From the first equation, express  x = 2y + 11  and substitute it into the second equatio to get

    2*(2y + 11) + 5y = -23.


Simplify and find y

    4y + 22 + 5y = -23

    9y = -23 - 22

    9y = -45

     y = -45/9 = -5

     x = 2*(-5) + 11 = -10 + 11 = 1.


<U>ANSWER</U>.  x = 1;  y = -5.
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Solved.