moneybaga8960 moneybaga8960
  • 02-12-2019
  • Mathematics
contestada

solve the systems of equations using elimination
3x-5y=-2
4x-7y=-3
a.(-1,-1)
b.( -7/3, -1)
c. (-7/3, 1)
d.(1, 1)

Respuesta :

Yang100
Yang100 Yang100
  • 02-12-2019

Answer:

x=1, y=1. (1, 1). The answer is D).

Step-by-step explanation:

3x-5y=-2

4x-7y=-3

--------------

4(3x-5y)=4(-2)

-3(4x-7y)=-3(-3)

------------------------

12x-20y=-8

-12x+21y=9

--------------------

y=1

3x-5(1)=-2

3x-5=-2

3x=-2+5

3x=3

x=3/3

x=1

Answer Link

Otras preguntas

Why did Christian art become publicly accepted during the third century?
What is the Roman Empire’s cultural legacy
find the next three terms in the sequence. 12,36,108...
The teacher teaches them the lesson. Choose the indirect object.
Does anyone know 8 and 9
Which of the following is a solution to the equation 16 = 4x -4 -5 -4 5 16
How many moles of solute particles are present in 1 ml of aqueous 0.020 m (nh4)2co3?
Coordinates that measure how far a point is from the origin are _______________. A. Relative coordinates B. Absolute coordinates C. Negative coordinates D. X co
Using the variables 'x' and 'y', write an equation for the situation. The ticket sales equaled $2242. Adult tickets $250 and student tickets cost $2.
Your brother is insisting that you'll never hear a sound produced behind a barrier wall at the end of your yard. You notice that the door within the wall is o