Pleasehelp124 Pleasehelp124
  • 03-02-2022
  • Mathematics
contestada

I need help can I have how to do it and some work so I can do it.

I need help can I have how to do it and some work so I can do it class=

Respuesta :

fieryanswererft
fieryanswererft fieryanswererft
  • 03-02-2022

Answer:

x = -2  ||   y = -3

Step-by-step explanation:

5x - 2y = -4

x + 2y = -8

--------------------------------------------

5x - 2y = -4

5x = -4 + 2y

x = (-4 + 2y)/5

x + 2y = -8

x = -8 - 2y

Solving simultaneously:

-8 - 2y  =   (-4 + 2y)/5

5(-8 - 2y) = -4 + 2y

-40 - 10y = -4 + 2y

-40 + 4 = 2y + 10y

-36 = 12y

y = -3

if y is -3 then x is:

x = -8 - 2y

x = -8 - 2(-3)

x = -2

Answer Link

Otras preguntas

Who is the MOST important historical figure in Christianity?
I need help What is the period of the sinusoidal function?
A triangle has a base of 5 centimeters and a height of 8 centimeters. What is the area of the triangle? 10 cm2 13 cm2 20 cm2 40 cm2
Citations can be complete quotations set off from the main body of your paper. True False
What is 60% of 70? Thank you if you help me!
Bob is thinking about leasing a car. The lease comes with an interest rate of 8%. Determine the money factor that will be used to calculate Bob’s payment.
What year did adolf hitler become chancellor of germany?
I know the answer is supposed to be 20.7, but how?
A worm moves forward 3/8 inch every 5 minutes for 1 hour 25 minutes. How fast does the worm move in this time?
A pebble is stuck in a bicycle tyre. As the tire turns it leaves a mark on every 69 inch. How would u calculate the circumference?