SOLUTION: can you find the two linear equations by addition for me?
here is the question:
7/3x-y=-4
1/4x-1/3y=7/4
it would be a great help if you can show me how you solved this step b
Algebra.Com
Question 196374: can you find the two linear equations by addition for me?
here is the question:
7/3x-y=-4
1/4x-1/3y=7/4
it would be a great help if you can show me how you solved this step by step
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
7x/3-y=-4
x/4-y/3=7/4 mulltiply this equation by -1/3 & add.
-7x/9+y/3=4/3
-------------------------
x/4-7x/9=7/4+4/3
(9x-4*7x)/(4*9)=(7*3+4*4)/4*3)
(9x-28x)/36=(21+16)/12
37x/36=37/12
37x*12=37*36
12x=36
x=36/12
x=3 ans.
7*3/3-y=-4
21/3-y=-4
7-y=-4
-y=-4-7
-y=-11
y=11 ans.
RELATED QUESTIONS
Can you please tell me if i got these correct?
Im doing a practice test to study for my... (answered by Edwin McCravy,solver91311)
I am working on systems of linear equations, which I have until now been able to complete (answered by funmath)
Expectations
As this is a fundamental "hands on" course, it is expected that you master... (answered by ewatrrr)
Systems of Equations
1. Solve the following problems for X and Y in these two system... (answered by solver91311)
What is the equations by graphing on these questions:
1. y=-2x+1y=x-5
2.... (answered by MathLover1)
Hello;
I am in a college beginning algebra class and I am struggling with solving... (answered by friesr,MathTherapy)
Solving Systems of Linear Equations by the Substitution Method.
I am having a... (answered by stanbon)
Any assistance would be great! Please help.
3. Solve the system by addition.
–4x + (answered by ms.jennifer)
Can I get your help? My problem is this:
{{{3x=1+sqrt(4x^2+x+7)}}}
I started by... (answered by Alan3354,stanbon)