Respuesta :
Answer:
C
Explanation:
Given :
⇒ 2x + 5y = -13 [Equation 1]
⇒ 4x - 3y = 13 [Equation 2]
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Multiply the 1st Equation by 2 :
⇒ 2 × (2x + 5y) = 2 × -13
⇒ 4x + 10y = -26 [Equation 3]
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Subtract : Equation 2 - Equation 3
⇒ 4x - 3y - 4x - 10y = 13 - (-26)
⇒ -13y = 39
⇒ y = -3
Answer is -3
Multiple equation 1 by -2
-4x-10y=26
Add it to the second equation to cancel out the x terms
-4x-10y=26
+4x-3y=13
-13y =39
Y = -3
Multiple equation 1 by -2
-4x-10y=26
Add it to the second equation to cancel out the x terms
-4x-10y=26
+4x-3y=13
-13y =39
Y = -3
