SOLUTION: solve by substitution 3x+y= -3 y=x+5

Algebra.Com
Question 311889: solve by substitution 3x+y= -3
y=x+5

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
solve by substitution
3x+y = -3
y = x+5
---------
substitute for "y" and solve for "x":
3x + x+5 = -3
4x = -8
x = -2
-----
Since y = x+5, y = -2+5 = 3
==============================
Cheers,
Stan H.

RELATED QUESTIONS

Solve by substitution: 3x - y = 5 y = 3x -... (answered by stanbon)
Solve by substitution: 3x - y = 5 y = 3x -... (answered by stanbon)
Solve by substitution Y=x-3 and x... (answered by ikleyn)
Solve by substitution. y = 4 – 3x and 3x + y = 5 (answered by Alan3354,MathLover1)
Solve by substitution. x - y = 3 3x - 2y =... (answered by dead_famous1991)
Solve by substitution x + 3x = 5 -2x + y =... (answered by ewatrrr)
Solve by substitution. x = y + 3 and 3x - 2y =... (answered by checkley71)
solve by substitution method: x=y+3... (answered by malakumar_kos@yahoo.com)
Solve the system by substitution: x= -5/9y-10/9... (answered by MathLover1)