r3o0xandattanyBo r3o0xandattanyBo

18-09-2016
Mathematics

contestada

solve the system of equations {3x-y=10, -x y=12} for Y

Respuesta :

nobillionaireNobley nobillionaireNobley

18-09-2016

3x - y = 10 . . . (1)
-x + y = 12 . . . (2)

(1) + (2) => 2x = 22 => x = 22/2 = 11

From 2, -11 + y = 12 => y = 12 + 11 = 23

Answer Link

Otras preguntas

What happend In a representative government

drawing of proclamation act

9g=56 (2 decimal place)

How far did you travel if you drove for 10 hours traveling at a speed of 50 mi/hr?

The point over which a level is centered is called a A. station mark B. transit C. plumb line D. point of reference

In the United States, recessions are typically associated with a(n): a. decrease in the percentage of Americans with health insurance. b. falling unemployment

A. What is the probability a person admitted to the hospital will suffer a treatment-caused injury due to negligence (to 2 decimals)

which country have many forests

Why is Jerusalem a key center of religious conflict throughout history?

By 1774, how did the Germans of Northhampton County, Pennsylvania, react to talks of liberty? a. They supported liberty but opposed the American Revolution. b.