nessab nessab
  • 02-05-2020
  • Mathematics
contestada

WILL GIVE BRAINLIEST. If x+y=3 and 3x+5y=13, then x-y is equal to?

Respuesta :

TheNoobXD
TheNoobXD TheNoobXD
  • 02-05-2020

Answer:

(1,2)

y=2

x=1

Step-by-step explanation:

x+y=3

3x+5y=13

solve the equation

x=3-y

3x+5y=13

substitute the value of x into an equation

3(3-y)+5y=13

distribute

9-3y+5y=13

add -3y to 5y

9+2y=13

subtract 9 from both sides

2y=4

divide both sides by 2

y=2

substitute the value of y into an equation

x=3-2

subtract 3 to 2

x=1

--------

(1,2)

--------

Answer Link

Otras preguntas

Compare and contrast a chemical reaction and a nuclear reaction.
15 liters increased by 60 percent
What property must a solid have to be considered a crystalline solid
How important is it to have a powerful army and navy? Explain in detail
Why is John D. Rockefeller famous? A. He started as a low-paid iron worker in a mill and eventually became the founder of U.S. Steel Corporation. B. He owned se
What number is 35 percent of 22
A quarterback completed 68% of his passes in a game. He threw 25 passes. How many passes did the quarterback complete?
3. I am working on my recital piece today. A. present progressive form B. past progressive form C. future progressive form D. present perfect progressive form
15 liters increased by 60 percent
Which statement best describes an independent variable? A-The variable that responds to change in a investigation B- The variable you can change in an investiga