SOLUTION: I tried to use the substitution solvers and could not figure this out. Solve the system by substitution. x + y = 12 y = 2x

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Question 50673This question is from textbook Beginning Algebra
: I tried to use the substitution solvers and could not figure this out.

Solve the system by substitution.
x + y = 12
y = 2x
This question is from textbook Beginning Algebra

Answer by venugopalramana(3286) About Me  (Show Source):
You can put this solution on YOUR website!
Solve the system by substitution.
x + y = 12
y = 2x ............put this y=2x in the 1 st.eqn to get
x+2x=12
3x=12
x=12/3=4
so y=2x=2*4=8