SOLUTION: Solve the system 4x-7y=3 and x=2/3y + 4 and check your solution

Algebra ->  Expressions-with-variables -> SOLUTION: Solve the system 4x-7y=3 and x=2/3y + 4 and check your solution      Log On


   

Question 48131: Solve the system 4x-7y=3 and x=2/3y + 4 and check your solution
Answer by cowess(34) About Me  (Show Source):
You can put this solution on YOUR website!
1)4x-7y=3
2)x=2/3y + 4
use the result of 2) in 1)
4%2A%282%2F3y+%2B+4%29-7y=3
8%2F3y%2B16-7y=3
13=13%2F3y
y=3
x=2%2F3%2A3%2B4=6