Sunday
April 19, 2015

Homework Help: algebra

Posted by Donna on Tuesday, February 15, 2011 at 5:23pm.

I need to know if I am doing this problem right when sustitution method.
y+2x=3
y+2x=-4
y+2x=3 -1(y+2x=3)-y-2x=-4
now add the two equation
y-2x=3
-y-2x-4
the answer would be -4y=7
then divided -4=7 answer 1.75
I no that there is more to this answer I am just stuck and not sure if this is right are not.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

algebra - I need to know if I am doing this problem right when sustitution ...
math,algebra II - I need someone to explain to me step by step the process of ...
Algebra - Can you explain to me how to solve this equation? 2/3x-9=1/3 1/3=.33 ...
algebra - which method do you use to solve this equation.(x-1)^2=7. Is it the ...
5th grade math - sue and dave shared 1/3 pound of cherries equally. What ...
Algebra - x^3-36x over x^2+7x+6, divided by 6x^2-x^3 over x^2+x I know the right...
maths - simultaneous equations x + 2y = 4 3x - 4y = 7 x=3 and y = 1/2 i need to ...
math,algebra - I'm not understanding so the answer should read as follows and ...
Algebra 2 (check) - I have some problems that I've answered and I need someone ...
chem - Can someone please help me balance this equation? CH3OH + O2 ===> CO2...

Members