SOLUTION: Y = 2X + 9
2X - Y = -9 USE SUBSITUTION
Algebra.Com
Question 246615: Y = 2X + 9
2X - Y = -9 USE SUBSITUTION
Answer by dabanfield(803) (Show Source): You can put this solution on YOUR website!
Y = 2X + 9
2X - Y = -9 USE SUBSITUTION
Since Y = 2X +9 in the first equation substitute 2X+9 for Y in the second equation:
2X-Y = -9
2X-(2x+9) = -9
2X-2X-9 = -9
-9 = -9
So all values of X and, consequently, Y are solutions to these two equations.
RELATED QUESTIONS
use the subsitution method to solve the linear systems.
1) y=x+3
3x-y=5
2) 4x+y=9
(answered by lynnlo)
can you please assist me with the following problems
1. use elimination to solved... (answered by pramodkumar,malakumar_kos@yahoo.com)
.5x + y = 9
1.6x + 0.2y = 13
to solve this equation, use subsitution (answered by MathLover1)
Solve by using subsitution: {2x+y=8}... (answered by boilpoil)
hi, please help me solve this problem ( solve the linear system using subsitution)... (answered by MathLover1,ewatrrr)
Graph y = -9/2x - 9 (answered by EdenWolf)
-2x+y+4z=9 (answered by EdenWolf)
2x-3y=-1
Y=x-1
Slove system by subsitution (answered by Stitch)
what is subsitution of x=2 2x+y=4
(answered by Alan3354)