Seudónimo Seudónimo
  • 02-02-2015
  • Mathematics
contestada

Solve each system of linear equations by substitution.
3x - 2y = 9
y = 2x - 7 Pease show all steps

Respuesta :

VzDeath
VzDeath VzDeath
  • 02-02-2015
[tex]3x-2(2x-7)=9 \\ 3x-4x+14=9 \\ -x+14=9 \\ -14\ \ \ \ -14 \\ -x=-5 \\ /-1/-1 \\ \ \ x=5[/tex]
Answer Link
Аноним Аноним
  • 02-02-2015
3x-2y=9 will be
3x-9=2y and
(3x)/2-9/2=y

2) y=2x-7

if you mean the intersection , so y=y
(3x)/2-9/2=2x-7
1,5x-4,5=2x-7
-4,5+7=2x-1,5x
2,5=0,5x
x=2,5/0,5
x=5 is the answer
Answer Link

Otras preguntas

hey can you please help me posted picture of question
Find the missin number :7 =12:21
List all integers between -15 and 25 that are congruent to 3 mod (11)
Which answer best fits the diagram? A. Vietminh B. Chinese C. Vichy French D. Viet Cong
BRAINLIESTTTT ASAP! What challenges did the United States face during Reconstruction?
You are playing basketball with some friends at a local court. One of your friends falls and twists her ankle after making a great shot. She seems to be in pain
In the Teapot Dome Scandal, Secretary of the Interior Albert Fall leased
How does sir Gawain an the green knight fit into the medieval romance genre
Plants can most readily utilize the ______ form of nitrogen.
What is this type of car?