londielon
londielon londielon
  • 02-04-2020
  • Mathematics
contestada

- 8x-10y=20
-8x - 6y=-4

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 02-04-2020

Answer:

x=5 y =-6

Step-by-step explanation:

- 8x-10y=20

-8x - 6y=-4

Multiply the first equation by -1

8x +10y=-20

Add this to the second equation

8x +10y=-20

-8x - 6y=-4

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

      4y = -24

Divide each side by 4

4y/4 = -24/4

y = -6

Now we need to solve for x

8x +10(-6) = -20

8x -60 = -20

Add 60 to each side

8x -60+60 = -20+60

8x = 40

Divide each side by 8

8x/8 = 40/8

x =5

Answer Link

Otras preguntas

how do i find the circumference? HELP PLEASE!!
11) mWhich of the following sets of three units are all metric measurements of length?* A) inch, foot, yard B) kilometer, centimeter, millimeter C) kilogram, gr
what are the three steps of conjugation
describe the similarities between the book "The Jungle" and the book "fast food nation"
21 10. The plays generally considered the tragedies by William Shakespeare are Antony and Cleopatra, Coriolanus, Hamlet, Julius Caesar, King Lear, Macbeth, Othe
tradiciones y corrientes de la geografía​
is -23 degrees F. How many degrees below 0 is this? ​
Starch and glycogen are types of this macromolecule. a. carbohydrate. b. nucleic acid. c. lipid. d. protein.
Help me answer these please will give brainlst
PLSS HELP will give brainliest!! (if you’re right) is (2,5) a solution to the equation “y=2x+3”