Posted by **James** on Thursday, August 27, 2009 at 10:49am.

Given that: 4x-y+9=0 and 3y-2x=7, solve for y

- Math -
**bobpursley**, Thursday, August 27, 2009 at 10:57am
multiply the second equation by 2, then add the equations.

4x-y+9+6y-4x=14

5y+9=14 solve for y,

- Math -
**James**, Thursday, August 27, 2009 at 11:17am
am I doing

2(5y + 9)=14

10y + 18 =14

does y= -2.5

- Math -
**James**, Thursday, August 27, 2009 at 11:20am
oh i think i got it does y=1

## Answer this Question

## Related Questions

- math - could someone please help. given each set of data for ∆ABC: a) ...
- Math - Solve by eliminnation methods 2x-4y=5 2x-4y=6 solve the system by ...
- math - Could someone check these questions for me? Please? My answers are under ...
- Math help please - 1. Solve for x. 4(x - b) = x b = 4/3x b = 3/4x x = 4/3b x = 3...
- math/algebra - 22. solve x/($a) - x/($b) = c what is this? The world wonders. ...
- math - I am helping my child with this. Can you show me how to Solve word ...
- algebra - how would i work out the following problems solve each formula in ...
- maths - The probability that Katarina will correctly solve a given Brilliant ...
- math - Jenny wanted to solve the quadratic equation x2 - 11x +18 = 0 by ...
- math - complete the table given values of x. then use the table to solve the ...

More Related Questions