thatch86
thatch86 thatch86
  • 12-08-2020
  • Mathematics
contestada

12. Solve the systems of linear equations using the substitution method.
x=y - 2
4y = x + 23

Respuesta :

ericokwesi ericokwesi
  • 12-08-2020

Answer:

x=5 and y=7

Step-by-step explanation:

x + 2 = y (equation 1)

x + 23 = 4y (equation 2)

(equation 2) - (equation 1)

This gives,21 = 3y

y = 21/3

y = 7.

Put y = 7 into equation 1 to find x

x + 2 = 7

x = 7 - 2

x = 5.

Answer Link

Otras preguntas

What is the 100 percent effective way to prevent the spread of sexually transmitted diseases?
what would be an appropriate greeting before asking someones name: a. hola ! b. cual es tu appellido ? c. adios !
Match each type of restriction with one of its purposes
How can the federal government influence the economy? A. change government spending levels B. change tax levels C. do both A and B D. do neither A nor B
A line segment is drawn from (2, 3) to (2, 8) on a coordinate grid. Which answer explains one way that the length of this line segment can be determined? A. S
Amanda Wolpert’s home in Richmond, Virginia, has an assessed value of $74,200. The tax rate where she lives is 25.13 mills. What is her annual real estate tax?
1. How many chromosomes are in each of your body cell 2. What is A karyotype 3.
What forces typically hold separate molecules together?
i need help plz help me!!!
why was it so difficult to end segregation