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

A paragraph proof uses inductive reasoning to prove a statement. contains a table with a logical series of statements and reasons. uses a visual chart of the l

James deposited $575 into a bank account that earned 5.5% simple interest each year. If no money was deposited into or withdrawn from the account, how much mon

help me plz uevdhdb FM xb

Ralph has normal blood clotting but has two brothers and a sister with hemophilia what are the most probable genotypes of Ralph parents

This body of water is found to the east of India and is part of the Indian Ocean

Suppose babies born in a large hospital have a mean weight of 3242 grams, and a standard deviation of 446 grams. If 107 babies are sampled at random from t

In its earliest incarnation, fusion was a musical style formed by combining?

WHO is Lilith in the bible?

Reflection of light is a fundamental property of all mirrors. Bill and Bett wanted to produce a virtual image using one of the mirrors supplied by their teacher

Which of these played the BIGGEST role in Ghana's rise as an empire in 500s and 600s CE?