Answer
x = -3
y= -1
Work Step by Step
4x + y = -13 firat equation
12 x +3y =- 39 multiply by 3
6x - 3y = -15
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18 x = - 54 add the equations to eleminate y
x =- 3 divide both sides by 18
let x = - 3 in first equation
$4\times(-3)$ + y = -13
- 12 + y = -13
y = -13 +12
y = -1
