Hafsa821123 Hafsa821123
  • 22-01-2020
  • Mathematics
contestada

x+y=7
x-y=3
2x-3y=15
3x-2y=10

Respuesta :

mp1784777
mp1784777 mp1784777
  • 22-01-2020

Step-by-step explanation:

x+y=7 _ eqn1

x-y=3_ eqn2

add eqn1 and eqn2

x+y=7

+ x-y=3

= 2x= 10

x=5

x+y=7

5+y=7

y=7-5

y=2 proved

Answer Link

Otras preguntas

Please help me I’m so confused new topic
A bookshelf is 2 m long, with supports at its ends (P and Q). a)A book weighing 10 N is placed in the middle of the shelf. What are the upward forces at P and Q
Which of the following industries is important to the economies of the countries in Oceania? Group of answer choices tourism banking technology manufacturing
Correct answer : BrainliestNonsense : Ban. ​
Texas history, needs to be done today!!can you answer at least one of the abovepicture below​
Need help with these questions
Compare the properties of the four state of matter in terms of particle arrangement, particle motion, shape, size, and compressibility
what are the steps to solving this?
how long does it take a guienne fowl to grow up?
What is only means of preserving beauty, according to these lines from william shakespeare’s sonnet 3