villa1748jorge villa1748jorge
  • 01-05-2020
  • Mathematics
contestada

-3x-4y=-2 and y=2x-5. What is y? *

Respuesta :

keziakh004
keziakh004 keziakh004
  • 01-05-2020

Answer:

Step-by-step explanation:

The easiest way to do this is to solve for x first, then y.

Plug the second equation (y = 2x - 5) into the first equation (-3x - 4y = -2).  This will give you -3x - 4(2x - 5) = -2.  Solve for x.

-3x - 4(2x - 5) = -2

-3x - 8x + 20 = -2

-11x = -22

x = 2

Now, you can plug in the x-value into the second equation.

y = 2(2) - 5

y = 4 - 5

y = -1

Answer Link

Otras preguntas

What were the relationships between England and other countries during the Reformation?​
What is the value of -3x^2 - 2x -9 when x= -2
Hehe- so i need to know what 52 divided by 4 +the woking out
Geometry HELP PLEASE and explain how I can get it
Match each word description on the left with its drawing on the right. Some of the answer choices on the left may not be used. Ray XY Х Y Ray YX Х Line XY Point
Can someone help me here lol
WILL GIVE BRAINIEST Consider the function what is the function Zoom in to see better
Mg + 2HCI MgCl2 + H2 Classify
Please someone help!!!
What has a larger capacitance, an aluminum sphere with a 10 cm diameter or one with a 100 cm diameter? Question 16 options: 10 cm 100 cm They are both the same.