gachawolf
gachawolf gachawolf
  • 01-05-2021
  • Mathematics
contestada

Substitution method please help :3

Substitution method please help 3 class=

Respuesta :

themathexpertise
themathexpertise themathexpertise
  • 01-05-2021

Answer:

3x = 14

Step-by-step explanation:

Add the two equations.

5x + (-2x) = 3x

(-y) + y = 0

6 + 8 = 14

3x = 14.

Answer Link
Samson2007
Samson2007 Samson2007
  • 01-05-2021

Step-by-step explanation:

5x - y = 6 and -2x + y = 8

1/ 5x - y = 6

=> y = 5x - 6

2/ -2x + y = 8

Substitute 1/ into 2/ we will have:

-2x + (5x - 6) = 8

=> -2x + 5x - 6 = 8

=> 3x = 14

=> x = [tex]\frac{14}{3}[/tex] <=> y = [tex]\frac{52}{3}[/tex]

- However, the question asked for the final equation when adding 5x - y = 6 and -2x + y = 8 => The correct answer will be: 3x = 14

Answer Link

Otras preguntas

Which topic is too broad for a research paper on world history? Chinese history the contributions of Aztec culture Marco Polo’s trade route to the Far
Which quantity vector is a vector quantity
Sam and I went to watch the ballgame together. Which kind of pronoun case is the bold word?
We have yet to hear about the downtown? __________ stake in the new parking lot being built. choose the answer that correctly completes the sentence. a. ?busine
help please im terrible at taking test and passing them! please and thank you very much 1.which economic problem did many latin american nations face in the yea
PLZZZZZ NEED HELP!!!!!!
Plz help. 3 yd+ 10 ft+ 17 in=
the philadelphia plan was
66 is 56% of what number?
Dictators gained power in Latin American nations because they promised to give American corporations free reign in their nations.