02-11-2016
Mathematics

contestada

solve by substitution 3y-2x=10 and x=9-2y

Respuesta :

babygirl0328 babygirl0328

02-11-2016

3y-2(9-2y)=10
3y-18+4y=10
-y-18=10
-y=28
y=-28
3(-28)-2x=10
-84-2x=10
-2x=94
x=-47
so x is -47 and y is -28

Answer Link

Otras preguntas

5. When an adverb modifies a verb with a helping verb, the adverb should generally be placed a. at the beginning of the sentence. b. before the helping verb. c.

You can access various sites on the WWW by using hyperlinks or by

which of the following is an example of rhetorical device ? (A. purpose) (B.ethos) (C.emotion) (D.pattern)

Which of the following is not a characteristic of the amniotic sac? A.keeps the embryo from drying out B.maintains a constant temperature C.cushions and protect

Which two properties are used to define matter? A.has mass and conducts heat B.has buoyancy and volume C.has mass and takes up space D.conducts energy and has c

In the ancient Roman republic, who were the consuls? A) the heirs to the emperor's throne B) Senators who also led committees to deal with specific issues C)

An 80.0 g sample of iodine-131 was placed in a sealed vessel forty days ago. Only 2.5 g of this isotope is now left. What is its half-life?

In the 1860s, most factories were located in the

under the blank system, spanish conquistadores were rewarded with local villages and control over the local labor force A.) Plantation B.) Encomienda C.) Impres

Choose the correct method to factor the following completely. rx − sx + r − s