SOLUTION: Use the elimination method to solve the given system of equations. Please show all work 2a - 4b = 9; 3a + 4b = 1

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: Use the elimination method to solve the given system of equations. Please show all work 2a - 4b = 9; 3a + 4b = 1      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 864296: Use the elimination method to solve the given system of equations. Please show all work
2a - 4b = 9;
3a + 4b = 1
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Hint: add the two equations to get


2a - 4b = 9
3a + 4b = 1
------------
5a+0b = 10


This means 5a = 10. Solve this equation for 'a'. Then use this solution for 'a' to plug it back into an equation with a,b in it solve for b.