Wednesday
April 1, 2015

Homework Help: 7th grade math check

Posted by saranghae12 on Thursday, April 12, 2012 at 9:11pm.

Ok I was wondering if you could check these 3 problems please. I am suppose to set these equations equal but I am not sure if did them right. I think I accidently solved these systems as substitutions. The answers are suppose to be in coordinate pairs.


1) x - y = 11
-3x + y = -21
I got (5,-16)

2) 5x - 4y = 17
-10x + 4y = -42
I got (5,3)

3) x + 3y = -1
3x + 3y = 15
I got (4,1)

Please check if i did it correctly please. thank you

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Math (Check) - The equation y = a^x is a decreasing function a = 1) 1 2) 2 3) -3...
7th grade math - Can you check these problems? 1. 4x^2 + 3x - 4x +5 = 4x^2 - x...
MAT 7th GRADE - Please help. Will someone please check the answer to these ...
grade 9 math slope equations - question: slove by comparison and check your ...
third grade math - how do you check addition problems by adding up? Let's use ...
MATH 7th GRADE - Would someone please be kind enough to check the answers for ...
7th grade Math - can someone please check this for me. Be sure to round to the ...
Pre Cal Check - focus: (0,p) vertex: if not given, then it is assumed (0,0) ...
8th grade math - I am not sure if I did it correct, can you please check this ...
Precalculus problems check? - Did I do these two problems right? P(1-sqrt2) = 8x...

Members