amaqueda
amaqueda amaqueda
  • 02-04-2022
  • Mathematics
contestada

Solve the system by substitution.
8x +y = 4
-23 – 8= y

Respuesta :

rspill6
rspill6 rspill6
  • 02-04-2022

Answer:

(2,-12)

Step-by-step explanation:

Correct equations:

  8x+y=4

 -2x-8=y

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

Rearrange the first equation:

8x+y=4

y=4-8x

Now use this value of y in the second equation:

-2x-8=y

-2x-8=4-8x

6x = 12

x = 2

When x = 2:

y=4-8x

y=4-8(2)

y = -12

(2,-12)

--

One can also graph the two equations and find the point they intersect.  See the attached graph.

Ver imagen rspill6
Answer Link

Otras preguntas

Rafiq compares the expressions 4 X 8 and 8 X 12. He says that 8 is twice as much as 4, so 4 X 8 must be twice as much as 8 X 12. Correct his statement, and expl
slove for x 3(x+1)=-2(x-1)-4
an inference is a statment that usually omits important....
A psychologist has to obtain a medical degree to diagnose and treat people with disorders. Please select the best answer from the choices provided T F
True or False: The correct answer to a numeric entry field will appear only if you click on the fields themselves after selecting Grade It Now. True
How many pounds of flowers does it take to get 1 pound of Saffron. *
HELLLLLPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Operations management moves from knowing the needs of consumers to actually satisfying those needs.a) trueb) false
Which of the following is NOT an important fuction of proteins?
What keep forest fries burning so long?Why do some forest fires get so large?Why are the forest fires large some years and not other years.Why are California fo