SOLUTION: x=4y y=3x+1 will you solve for x and solve for y?
Algebra
->
College
->
Linear Algebra
-> SOLUTION: x=4y y=3x+1 will you solve for x and solve for y?
Log On
Algebra: Linear Algebra (NOT Linear Equations)
Section
Solvers
Solvers
Lessons
Lessons
Answers archive
Answers
Click here to see ALL problems on Linear Algebra
Question 27730
:
x=4y
y=3x+1
will you solve for x and solve for y?
Answer by
wuwei96815(245)
(
Show Source
):
You can
put this solution on YOUR website!
This set of equations is best solved by substitution.
We know that x=4y so we can substitute this value for x in the second equation.
y=3x+1
y=3(4y) + 1
y=12y + 1
y-12y=1
-11y=1
y=-1/11
x=4y
x=4(-1/11)
x=-4/11
Strange values. You can substitute them into the equations to check their correctness.