Answer
x = -3
y = 4
Work Step by Step
x - 2y = -11 first equation
-x + 5y = 23 second equation
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3y = 12 addthe equations to eleminate x
y = 4 divide both sides by 3
let y =4 in first equation
x - 2y = -11
x - $2\times4$ = -11
x - 8 = -11
x = -11 + 8
x = -3