giselleloveshimmm giselleloveshimmm

09-03-2024
Mathematics

contestada

using substitution to solve systems y-2x=3 2x-3y=21

Respuesta :

peacemonk peacemonk

09-03-2024

Substitute on the first equation: y = 3 + 2x
2x - 3(3 + 2x) = 21
2x - 9 - 6x = 21
-4x = 21 + 9
x = 30 /4
x = 7.5

Then, substitute again: y = 3 + 2•7.5 = 18

Answer Link

Otras preguntas

Do birds or spiders learn to avoid aposematic moths? a. Birds b. Spiders c. Both d. Neither

In exercises 25 through 30, find the matrix b of the linear transformation t(x)=ax with respect to the basis b=(v1, ..., vm).

The Inheritance Games: What flavor cupcakes did Avery not like?

Ringworm is caused by a worm that is picked up from infected ground. a.True b.False

If a gland secretes its products through a duct to the surface of the small intestine epithelium, it must be an A. endocrine glandb. exocrine gland

need answers ASAP (Algebra 2)!!

Which term is defined as data that is complete, accurate, consistent, and up-to-date?A. AvailabilityB. ConfidentialityC. IntegrityD. Security

What is NOT one of the three main structures of the hair folicle?

How did the soldiers make the dead seem less dead in Vietnam?

During what era did police move out of politics?A. The Political EraB. The Professional EraC. The Progressive EraD. None of the above