Thursday

April 17, 2014

April 17, 2014

Posted by **jay jay** on Tuesday, July 8, 2008 at 12:17am.

4x-9y=18.5

7y-2x=-10.5

- algebra -
**drwls**, Tuesday, July 8, 2008 at 1:25amRewrite the second equation

-2x + 7y = -10.5 Now double it.

-4x + 14y = -21

Now add that to the first of your equations

5y = -2.5

y = -0.5

4x + 4.5 = 18.5

4x = 14

x = 3.5

**Related Questions**

math - Can someone help me solve the following....using elimination methods 1) ...

HELP - Solve using the elimination method? 4x-9y=6.5 AND 7Y-2X=4.5

Algebra 1 a - Need help to solve can anyone help me please 6x-9y = 25.5 7y-2x =-...

Quick math help - Can someone please check my math Hw? Thank you!! Solve each ...

math-PLEASE HELP ASAP - Solve using elimination.......answers must be in ordered...

math - Can someone help me solve the following....using elimination methods 1) ...

math - Solve by elimination 8x-9y=8.5 7y-2x=-4.5

Algebra - solve equations by elimination 2x-6y=3 (1) 4x+9y=-1 (2)

Algebra 2 - maximize p=6x+10y minimize p=14x+9y use elimination to solve: 4x+5y=...

Math Elimination method - PLEASE HELP!!!!!!!!!! Solve by the elimination method ...