Skata Skata
  • 04-02-2021
  • Mathematics
contestada

elimination process

7a-3b = 26
a + 2b =11

Respuesta :

rashmikushwahask
rashmikushwahask rashmikushwahask
  • 04-02-2021

Answer:(a=5,b=3)

7a-3b = 26--------(1)

a + 2b =11---------(2)

on mutlplying by7 in eq 2

= 7a+14b=77-------(3)

from eq(1) and (3) (on substracting)

7a+14b=77

7a-3b=26

________

=-17b=51

b=51/17

b=3

on putting value of b in eq 1

7a-3b = 26

=7a-9=26

7a=35

a=5

Step-by-step explanation:

hope it helps

mark me brainliest

Answer Link

Otras preguntas

Which words in the sentence are the appositive? Which words does the appositive rename? The author Charles Dickens wrote some of the best-loved novels of all
Give an example of oxidation reaction which can be a nuisance
A Coast Guard ship patrols an area of 125 square miles. The area the ship patrols is a square. About how long is each side of the square? Round your answer to t
does 20 hundredths equal 2 thousandths
Signs of Roman decline were manifested by agricultural and economic prosperity which undermined the values of Rome. the weakening of Rome's army which was force
Write a newspaper headline about the Boston tea party from the points of view of a loyalist and a patriot. Explain your headlines.
To calculate the area of the front surface of a box,you (a) add the length to the height (b) add twice the length to twice the height ( c) multiply the length b
If a=3 and b=5, what is the value of 3a + b to the power of 2?
What Percent Of 700 Is 385
the ratio of boys to girls at the movie is 4:7. If there are 21 girls, how many boys are at the movie?