Kpop07
Kpop07 Kpop07
  • 08-11-2019
  • Mathematics
contestada

2x - y = 3
y = -x
What’s the value of x?

Respuesta :

Respect3105
Respect3105 Respect3105
  • 08-11-2019

Answer:

These are simultaneous equations.They have to be solved like this:

2x-y=3 -y=3-2x 2x-3= -x

y= -x y= -(3-2x) 3x= 3

y=2x-3 x=1

Step-by-step explanation:

The value of x equals to 1

Answer Link
Mxnuel26
Mxnuel26 Mxnuel26
  • 08-11-2019

Answer:

X = 1 which means Y = -1

Step-by-step explanation:

2x - y = 3                    

y = -x                              

Sub for y

2x + x = 3

Add the x's

3x = 3

Divided by 3

x = 1

Answer Link

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