sarasorrells sarasorrells

02-05-2021
Mathematics

contestada

What is the value of xin the solution to this system of equations?
y + 2x = -1
y =1/2x+4

Respuesta :

cwrw238 cwrw238

02-05-2021

Answer:

x = -2.

Step-by-step explanation:

y + 2x = -1

y = -2x - 1

y =1/2x+4

Subtracting the last 2 equations:

0 = -2x - 1/2x - 1 - 4

5 = - 5/2 x

x = 5 / -5/2

= 5 * 2 / -5 = -2.

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