SOLUTION: 2. x=y-1
y=4-2x
4.y=2x-5
3y-x=5
6.x=-2y
x=2-4y
*can you please use SUBSTITUTION for all of them thanks for you help!!!!!!!!!!!
Algebra.Com
Question 380376: 2. x=y-1
y=4-2x
4.y=2x-5
3y-x=5
6.x=-2y
x=2-4y
*can you please use SUBSTITUTION for all of them thanks for you help!!!!!!!!!!!
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
2. x=y-1
y=4-2x
----------
Sub for x in the 2nd eqn
y = 4 - 2(*y-1)
y = 4 - 2y + 2
y = 6 - 2y
3y = 6
y = 2
-------
x = y-1
x = 1
-------
Do the others the same way.
RELATED QUESTIONS
1. x+y=10 2. x=y-1
y=x+8 y=4-2x
3. x=y+6 4.y=2x-5
y=-2-x... (answered by Alan3354)
PLEASE HELP ME!!!!!! :(((
Find the solution of the following system of equations by... (answered by jim_thompson5910)
Can you please tell me if i got these correct?
Im doing a practice test to study for my... (answered by Edwin McCravy,solver91311)
1. 2x=y-1
y=3x
2. x=-y
2x+y=-2
3. 2x+2y=4
x=10-3y
4.... (answered by checkley71,funmath)
I need help in solving the system of equations by elimination.
1. 2x-y=3; x+2y=-1
2.... (answered by ewatrrr)
2. X = 2-seat tables
y = 4-seat tables
2x + 4y = 56 (max)
x + y = 17
Solve... (answered by haileytucki)
Have I correctly solved the 4 problems below using the systems of simultaneous equations, (answered by ikleyn)
hi, can you please help me solve this problem:
using the elimination method:
1.... (answered by MathLover1)
Can somebody help me solve these equation using substitution ? thanks
1. {3x+4y=-2... (answered by ankor@dixie-net.com)