evie120904
evie120904 evie120904
  • 09-03-2016
  • Mathematics
contestada

how to solve a system of equations by substitution

Respuesta :

IDontLikeYou
IDontLikeYou IDontLikeYou
  • 09-03-2016
First, substitute y in 3x-2y=9 for what it says y equals (2x-7). You now have: 3x-2(2x-7)=9. Breakdown:
3x-2(2x-7)=9
3x-4x+14=9
-1x=-5
x=5
next solve for y
y=2x-7
y=2(5)-7
y=10-7
y=3
So Now We Have x=5, and y=3.
Hope That Helped =D
Answer Link

Otras preguntas

Choose all the right answers. What is an outline made up of? main idea personal notes detail subtopic
Why did the Temperance Movement start?
Estimate the total shaded area below, list all that are correct: A. 14/28 B. 2 1/10 C. 2 100/200 D. 5/2
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!
Summarise. . There was no time to take off dresses, and amid the flying sparks, and in and about the burning buildings, could be seen clowns, knights in armour,
1. Identify and underline all the noun phrases in these sentences. One hasbeen done for you.a) The trip to the mountains was a great experience.b) My friends an
Q26. Division A has 15 students and division B has 20 students. Average score of students in division A is greater by 2 as compared to the average score of stud
How many Faraday is needed to deposit 0.2 g of Calcium (Ca) from CaCl2 solution using electrolysis process.
Plz Ans my question its urgent​
I am well known amongst students .U might be familiar with me bcos am easy to grab.My calculations involve a geometric figure with a number of sides .Rememberin