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

Suppose a log's mass is 5kg. After burning, the mass of the ash is 1 kg. Explain what could have happened to the other 4kg. Help i can't figure this out.
c is 8 more than half of n
What the total number of neutrons in a atom of 0-18?
How many dekameters are in 225 millimeters?
Why does a moving object come to a stop on a frictional surface?
"Thomas Jefferson proposed that the president have a life term." True or False?
How to monitor and report potential health and safety risks?
Weather forecasts and severe weather alerts are issued by the __________.
A 2-mi cab ride costs $4.25. A 7-mi cab ride costs $8.50. Which equation models the cost y of a cab ride that is x miles?
Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y = 6 sin x, y = 6 cos x, 0 ≤ x ≤ π/4