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

¿Que se logró durante la época colonial de Cuba?

The black graph is the graph of y = f(x). Choose the equation for the red graph

The perimeter of a rectangle is twice the sum of its length and its width. The perimeter is 46 meters and its length is 2 meters lore than twice its width. What

what are some negatives about 2020

Discuss with your classmates some challenges of using proper grammar. Be specific with at least 3 examples. Provide at least two instances of spelling mistakes

What was the war like for the different groups of people in America?

How far is my house if I travel 1 mi/min and it takes me 23 minutes to go home

Which describes the typical procedure during a dental cleaning? scale—polish—floss floss—scale—polish polish—floss—scale floss—polish—scale

in which countries did antonio keep trade relationswas he sad for his ships

Describe how these gases act like a “thermal blanket.”