bewellplus.gsu.edu
daysha141
daysha141 daysha141
  • 17-09-2016
  • Mathematics
Answered

how to solve for x: 2x+y=3 and x+y=9

Verified Answer :

Anonymous Anonymous
  • 17-09-2016

The answer for the first one would be: y=3-2x
The answer for the second one would be: y=9-x

Answer Link
kokodoggie kokodoggie
  • 17-09-2016

X+Y=9;
X=9-Y;

2X+Y=3; substitute above equation for X;
2(9-Y)+Y=3;
18-2Y+Y=3;
18-Y=3;
18=3+Y;
15=Y;

X+Y=9;
X+15=9;
X= -6;

2X+Y=3;
2(-6)+15=3;
-12 + 15 = 3;
3 = 3;

Answer Link

Related Questions

Renée ate one fourth of a pizza and Sammy ate one third of the same pizza How much pizza did they eat in all
Government that owns business and is ruled by a dictatorship
Calculate the mass in grams of calcium carbonate present in a 5000 mL sample of an aqueous calcium carbonate standard assuming the standard is known to have a h
Which planet has the slowest rotation rate
The primary purpose of metaphor and simile is to
The Medulla controls your involuntary actions a TRUE b FALSE
What do the dust tracks in the title of Dust Tracks on a Road symbolize A poverty in a backwater southern community B the path to a new way of life C finding th
How do i do this problem
462b3b please help dont know how to do this x
An antonym a word with a different meaning for the word fresh as it is used in this passage would be old recently made cold happy