SOLUTION: Solve by the elimination method.
0.3x - 0.2y = 4
0.5x + 0.5y = -45/17 (this is a fraction that is -)
I have no idea how to solve this, what do i do with that fraction? Help
Algebra.Com
Question 137503: Solve by the elimination method.
0.3x - 0.2y = 4
0.5x + 0.5y = -45/17 (this is a fraction that is -)
I have no idea how to solve this, what do i do with that fraction? Help please.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Solve by the elimination method.
0.3x - 0.2y = 4
0.5x + 0.5y = -45/17
------------
Multiply thru 1st by 0.5 and 2nd by 0.3 to get:
-------------
0.15x - 0.10y = 2
0.15x + 0.15y =-0.7911
------------------
Subtract 1st from 2nd to solve for "y":
-------
0.05y = -2.7911
y = -5.5882
-------
Substitute into 0.3x-0.2y = 4 to solve for "x":
0.3x -0.2(-5.5882) = 4
0.3x = 2.88235...
x = -9.6078...
Cheers,
Stan H.
==============
Cheers,
Stan H.
RELATED QUESTIONS
solve the system by additio or substitution
3x+6y=0
x= 2/3
I have no idea how to... (answered by ankor@dixie-net.com)
Solve the system by the method of substitution. (If there is no solution, enter NO... (answered by ReadingBoosters)
Solve by using the Gauss-Jordan elimination method:
x+y-z=2
2x+3y-z=7
3x-2y+z=9
I... (answered by jim_thompson5910)
solve the linear system using method of elimination.
2x+5y=18
3x+5y-17=0 (answered by ewatrrr)
I need help with this problem that is for a quadratic unit but I have no idea how to... (answered by Alan3354)
i have to solve this linear system
by using the Gauss-Jordan method
7x +5y - 3z = 16... (answered by stanbon)
Instructions: Solve each system by the elimination method.
What is the solution for... (answered by checkley71)
3x+3y=0
5x+5y=4
How to solve and is this consistent or inconsistent... (answered by swincher4391)
I have no idea how to work this problem, I keep getting the wrong answer
please help... (answered by scott8148)