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

explain the term political system of government
When there is excess demand, there is
In the diagram, shown below: If ∠ABC = 63° and ∠BCA = 54° , then what is ∠DAB?
Determine the center and radius of the following circle equation: x2 + y2 + 10x + 4y + 28 = 0 Please help :) ❤️
If you put ​$7850 in the atm each​ day, what percent of the days in a month should you expect to run out of​ cash
How do you divided 15 and 4.8
The data file wages contains monthly values of the average hourly wages (in dollars) for workers in the U.S. apparel and textile products industry for July 1981
Will mark brainliest! Pls help
1. Mis amigos siempre recogen su basura cuando de excursión. 2. Yo hablé con Paola después de que la reunión. 3. Mis padres reciclan con tal de que no difícil.
The model of a new apartment building is shown. Thearchitect plans for the building to be 144 times thedimensions of the model. What will be the volume andsurfa