luizombieonp5lcxi luizombieonp5lcxi
  • 14-03-2018
  • Mathematics
contestada

show your work solve the system
3x-5y=-1
2x+7y=20

Respuesta :

dylanh913 dylanh913
  • 14-03-2018
You can just do this on a calculator
Answer Link
BellaPrincess
BellaPrincess BellaPrincess
  • 14-03-2018
Step 1: Solve 3x−5y=−1 for x
Add 5y to both sides
Divide both sides by 3
Substitute 5/3y + -1/3, for x.
Simplify both sides of the equation
Add 2/3 to both sides
Divide both sides by 3 and 1/3

Y=2 

Substitute 2 for y in x = 5/3y + -1/3
Simplify both sides of the equation

X=3


Answer Link

Otras preguntas

After England's Glorious Revolution, what new group of ideas or law are passed that are similar to what will be developed in the U.S. A. a declaration of indepe
Explain, in your own words, the steps necessary to solve a system of equations using the substitution method.
A car averages 27 miles per gallon. If gas costs $4.04 per gallon, which of the following is closest to how much the gas would cost for this car to travel 2,727
if y = 2x + 5, find the value of y when x =10?​
please help me with this question ​
5 cm 4 cm 6 cm plssssssssss help​
a girl contemplates running away where should she go???
simplify the numerical expression, expressing the answer in reduced form: 3/5*5/7+2/3*3/5-1/7*2/5=
Solve the equation: 84 = 7d​
Select the autotrophs spider Cow mushroom sunflower Algea