nonaboyd11 nonaboyd11
  • 27-05-2020
  • Mathematics
contestada

Solve the system of linear equations using any method.
3x + 2y = 4
2y=8- 5x

Respuesta :

Leora03
Leora03 Leora03
  • 27-05-2020

Answer:

x=2, y= -1

Step-by-step explanation:

I'll be using substitution method.

First label the 2 equations.

3x +2y= 4 -----(1)

2y= 8 -5x -----(2)

subst. (2) into (1):

3x + 8-5x= 4

3x-5x =4-8 (bring x terms to 1 side, constant to the other)

-2x= -4 (simplify)

2x= 4

x= 4÷2 (÷2 on both sides)

x= 2 (simplify)

subst. x=2 into (2):

2y= 8-5(2)

2y= 8 -10 (expand)

2y= -2 (simplify)

y= -2 ÷2

y= -1

Answer Link

Otras preguntas

Richard is tiling a rectangular floor. The floor is 512 meters wide and 714 meters long. What is the area of the floor?
Which of the following was NOT a long term cause of World War I below?a.Progressivismb.Alliancesc.Nationalismd.Militarisme.Imperialism
PLEASE HELP!!! (Thank you) :)
Batay sa iyong inilagay na karapatan sa unang gawain, ilahad ang mganararapat na tungkulin na dapat mong gampanan.​
One inch is around 2 11/20 centimeters. How many centimeters long is 3 inches? What fraction of an inch is 1 centimeter?
SOMEONE HELP MEEE! 20 POINTS !!!!! - - -
Consider the arithmetic sequence: 10, 12, 14, 16, ... If n is an integer, which of these functions generate the sequence? Choose all answers that apply: a(n) =
whats the answer to 4x(-5x^4y)
in what ways did ceasers dictatorship violate the ideas of the republic
PLEASE ANSWER SOON! 1. À qui est le livre? (moi) 2. À qui est le drapeau? (Adrien et André) 3. À qui est l'ordinateur? (nous) 4. À qui est la télé? (elle) 5. À