crisfusecrawalla crisfusecrawalla

02-03-2017
Mathematics

contestada

X - Y = 11
2x + Y = 19

where do the lines cross

Respuesta :

wolf1728 wolf1728

02-03-2017

Just solve the equations:
A) X - Y = 11
B) 2x + Y = 19
Multiply A) by -2

A) -2X +2Y = -22 then add to B)
B) 2x + Y = 19
3Y = -3
Y=-1

A) X - -1 = 11
x = 10

Answer Link

Otras preguntas

How has the idea of citizenship changed throughout history?

what pushed the American coloniststowards wanting independence from the British

what's the difference between 8 848 and 10 911 meters

effect: spain's long-term naval superiority dwindled

Which of the following was primarily a political challenge that the United States faced after the Civil War? (Points : 3) worthless Confederate currency that le

An airplane flies a distance of 650km at an average speed of 300 km/h. How much time did the flight take?

In 1866, the Sioux Chief Red Cloud ambushed and massacred Union soldiers in an incident that would be referred to as the _______ Massacre. A. Wounded Knee B. Fe

Help? Which of the following best describes clear-cut logging? A. It is the method by which logging mills process raw timber. B. It is the process of completely

Why was Napoleon so anxious to sell the Louisiana area to the Americans at such a low price?

Eduardo is building a sandbox that has an area of 84 square feet. What are the possible whole number measurements for the length and width of the sandbox?