dannielynnwright64
dannielynnwright64 dannielynnwright64
  • 13-11-2020
  • Mathematics
contestada

Given the following equations:
Equation 1
5x+2y=7
Equation 2
x+y=5
Find the value of 4x + y

Respuesta :

mhanifa
mhanifa mhanifa
  • 15-11-2020

Answer:

  • 2

Step-by-step explanation:

Given

Equations

  • 5x+2y=7
  • x+y=5

To find

  • The value of 4x + y

Solution

Subtract the second equation from the first one side-by-side:

  • 5x + 2y - (x+ y) = 7 - 5
  • 5x - x + 2y - y = 2
  • 4x + y = 2

The answer is 2

Answer Link

Otras preguntas

How do I solve what is 2/3 of 90
Why did King Narmer build Egypt's capital where the delta and the valley joined
Find the area of a segment formed by a chord 8" long in a circle with radius of 8"
What is the factored form of 5x+x^2=0
List three types of colonies England formed in North America in the late 1500 and 1600's? Please Help me now before I get yelled at!
what number can you use to divide 47.5 over 190 when reducing and what number can you use  to divide 100 over 400 whe dividing
Andre says that 5 3/4 + 2 1/2 =7 1/2 because 7 4/8 = 8 1/2. Identify his mistake. Draw a picture to prove that he is wrong.
iN MITOSIS, ANAPHASE FOLLOWS WHAT?
Mammals with a carnivorous diet include the a. rabbit, mouse, elephant, zebra, and monkey. b. bear, badger, fox, human, and rat. c. aardvark, whale, hyena, dog,
8x-2(x+1)=2(3x-1) A.0 B.2 C.no solution <-- that's what I think it is. D.identity. Can someone check my answer