tyisspectacular
tyisspectacular tyisspectacular
  • 22-02-2021
  • Mathematics
contestada

Solve this system of equations by substitution
x=y+3
x+7=2y

Respuesta :

jimrgrant1 jimrgrant1
  • 22-02-2021

Answer:

(13, 10 )

Step-by-step explanation:

Given the 2 equations

x = y + 3 → (1)

x + 7 = 2y → (2)

Substitute x = y + 3 into (2)

y + 3 + 7 = 2y

y + 10 = 2y ( subtract y from both sides )

10 = y

Substitute y = 10 into (1) for corresponding value of x

x = 10 + 3 = 13

solution is (13, 10 )

Answer Link

Otras preguntas

What city was hephaestus patron of ???
A small child has a wagon with a mass of 10 kilograms. The child pulls on the wagon with a force of 2 newtons. What is the acceleration of the wagon?
10 lines on Good manners for class 1 student
Which sentence does not contain any punctuation errors?  A.The smoothie recipe includes the following, frozen berries, yogurt, and vanilla extract.  B.The smoot
why did colonists become increasingly unhappy with the british goverment?
A test tube containing CaCO₃ is heated until the entire compound decomposes. If the test tube plus calcium carbonate originally weighed 30.08 grams and the loss
How did America end up going to War with Iraq?
why did colonists become increasingly unhappy with the british goverment?
How did America end up going to War with Iraq?
What is the x-coordinate of the point in the standard (x,y) coordinate plane at which the 2 lines y = 2x + 6 and y = 3x + 4 intersect? Can you please explain wi