InnocentSoul
InnocentSoul InnocentSoul
  • 16-09-2018
  • Mathematics
contestada

Solve the system. 7x+2y=-8 8y=4x

A. -2,-1
B. -5,2
C. -1,-0.5
D. -8,4

Respuesta :

QueasyUnicorn14
QueasyUnicorn14 QueasyUnicorn14
  • 30-09-2019

Answer:

C. (-1,-0.5)

Step-by-step explanation:

7x+2y=-8

8y=4x

4x=8y

x=2y

7x+2y=-8

14y+2y=-8 substitute 2y for x

16y=-8

y=-1/2

8y=4x

8(-0.5)=4x

[tex]\frac{-4}{4}=\frac{4x}{4}[/tex]

x=-1

So therefore the answer is (-1,-0.5)

Answer Link

Otras preguntas

Animals and humans learn about the consequences of behavior through:
How can I make this exercise?? Please Help
how can i solve this ?
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! Factor the polynomial function over the complex numbers.
What is 240÷6? to find how man grapes Ally ate.
Which type of organism makes its own food?
-4 + p -2 [tex]\leq[/tex] -4
what is the reciprocal of 9/16
Ordena los números. Write the numbers in order: siete, ocho, seis 2. Escoge el pronombre posesivo para el pronombre y sustantivo. Choose the correct possessive
Which of the following is equal to 7 1/3