okikilyt
okikilyt okikilyt
  • 04-03-2021
  • Mathematics
contestada

elimination method
x-5=-y
3x-10=2y​

Respuesta :

200310 200310
  • 04-03-2021

Answer:

(4,1)

Step-by-step explanation:

Multiply the first equation by -3

(x-5=-y)*-3 = -3x+15=3y

Then combine like terms with the new equation and the second equation

(-3x+15=3y) + (3x-10=2y) = 5=5y

Divide 5 by both sides

1=y

Plug in 1 for y in an equation. Doesn’t matter which one and solve

x-5=-(1)

Distribute the negative sign to the 1

x-5=-1

Add 5 to both sides

x=4

Answer Link
kica226 kica226
  • 04-03-2021

X-5= -y
-X+5=y
-4+5=y
1=y

3X-10=2(-2+5)
3X-10= -2X+10
3X+2X=10+10
5x=20
X=4
Answer Link

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