CocoLWS CocoLWS
  • 02-06-2022
  • Mathematics
contestada

1/3x + 1/4y = 1

2x – 3y = –30

Respuesta :

altavistard
altavistard altavistard
  • 04-06-2022

Answer:

(-3, 8) is the solution

Step-by-step explanation:

The LCD of the first equation is (3)(4) = 12.  Rewriting this equation, we get:

4x + 3y = 12

to which we add the second equation, obtaining:

4x + 3y = 12

2x - 3y = -30

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

6x   = -18

Dividing both sides by 6 yields x = -3

Substituting -3 for x in the first equation yields 4(-3) + 3y = 12, or

-12 + 3y = 12

Then 3y = 24 and y must be 8.

The solution to this system of linear equations is (-3, 8).

Answer Link

Otras preguntas

If one half of a number is 8 less than two thirds of the number, what is the number? 1) 24 2)32 3)48 4)54
find the opposite or additive inverse of 48 =
evaluate -a.   a=2.2  need help
Two trains leave the station at the same time, one heading East and the other heading West. The westbound train is going 60mph. The eastbound train is going 80m
A carton can hold 1000 unit cubes that measure 1 inch by 1 inch by 1 inch. Describe the dimensions of the carton using unit cubes. Can you explain to me how to
If one half of a number is 8 less than two thirds of the number, what is the number? 1) 24 2)32 3)48 4)54
Analyze how scientific thhought changes as new information is collected
What is 5000 one tenth of?
1/4(12x+16)=10-3(x-2) anyone?
16 increased by twice a number is -24