# math

i need help with this problem:2x-y=-4
-x-y=5
when you answer this question can you plz include the steps you did to get the final answer?

1. 👍 0
2. 👎 0
3. 👁 39
1. A way to solve this type of problem:
First express one of the variables in terms of the other.
-x-y = 5
or, y = -5-x
Now substitute that value for y into the other equation.
2x -(-5-x)=-4
Solve for x, then substitute the known x value into either equation to solve for y.

1. 👍 0
2. 👎 0
2. Subtract the second equation from the first.

3x = -9
x = -3

y = -x -5 = -2

1. 👍 0
2. 👎 0
posted by drwls

## Similar Questions

1. ### SCIENCE!!--ANONYMOUS PLEASE ANSWER MY QUESTION!

plz answer the question we were talking about plz plz. Go back to the problem. I got 184 but the worksheet answer says 136 which is correct?? plz help!! thx

asked by Happy Face on September 13, 2010
2. ### Geometry

In the △PQR, PQ = 39 in, PR = 17 in, and the altitude PN = 15 in. Find QR. can u guys show how to solve the problem(plz include answer) i got 42 by using the pythagorean theorem i am not sure if i am correct but can u check it

asked by Allie on February 17, 2017
3. ### physics(URGENT!!!!!)

EDXers!!! Plz help with MITx 8.01x I don't know how to solve HW8 Problem 3 Question c) Can anybody help me???? Explain Plz

asked by Anonimus on November 20, 2013
4. ### sociology

How about -- class structure in your town or school? prejudice about a particular ethnic group? classroom group projects? perceptions about authority figures? sorry i wrote in dat language i need to do a project in sociology for

asked by Ms. Sue on August 14, 2007
5. ### LIVING ENVIRONMENT

the ability to grow in size is a characteristic of living organism .Although an icicle may grow in size over time,it is considered nonliving because there is 1)an incerase in matter ,but no increase in the number of icicle. 2)an

asked by tania sharmin on February 12, 2013
6. ### Math

On the six tests in her social studies course, Jerelyn's score were 92, 78, 86, 92, 95, and 91. Determine the median and the mode of her scores. If Jerelyn took a seventh test and raised the mean of her scores exactly 1 point,

asked by JAsmine on September 13, 2008
7. ### Math help plz

How thick is a pile of paper? Find a relationship between the number of folds and the number of layers. Note your observations. Number of folds Number of layers 0 1 1 2 2 4 3 8 4 14 5 23 Plz help im so stuck on this question Are

asked by Jessie on October 15, 2006
8. ### plz help english

my question is:- Complete the sentence below by interrupting it with two parallel if clauses: The problem of race relations, if………., and if………. must be solved. question is i wrote:- the problem of race relation, if it

asked by Anonymous on October 12, 2008
9. ### math, correction,plz

Can someone correct these for me..plz... Problem #1 simplify. ((p^5)^4)/(p^6) MY answer: p^14 Problem #2 Write using positive exponents only. b^-6 MY answer: (1)/(b^6) Problem#3 Write 1.81 X 10^-2 in standard notation My answer.

asked by jas20 on February 28, 2007
10. ### Physics

Plz plz answer this question..... "what is ment by the energy-mass relationship?explain it with the help of examples.....

asked by Ali on January 20, 2016

More Similar Questions