SOLUTION: how would i solve this by the substitution method a=4b a-b=9

SOLUTION: how would i solve this by the substitution method a=4b a-b=9

Algebra.Com

Question 731549: how would i solve this by the substitution method a=4b
a-b=9
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
how would i solve this by the substitution method a=4b
a-b=9
---------
Sub for a in the 2nd equation.

RELATED QUESTIONS
using the substitution method how would you solve this problem b=a-2... (answered by checkley75)

How would I use the elimination method to solve this problem? 2a+b=3 -3a-2b=-1 This... (answered by MathLover1,MathTherapy)

I forgot how to use substituition method this is the problem a=4b (answered by mathstutor458)

How can i solve this by the substitution method? 2M=N-3... (answered by checkley71)

Using the elimination method, how do you solve this? A+7B=9... (answered by Alan3354)

How would I solve this equation using multiplication with the addition method? Also by... (answered by math-vortex)

I know how to solve systems of linear equations using the substitution method, the... (answered by Earlsdon)

how would you solve by the substitution method or adding or subtracting method: 2m=n-3,... (answered by richwmiller)

I having a lot of trouble figuring out how to do this problem, + solve the system of... (answered by algebrahouse.com)