Friday

January 30, 2015

January 30, 2015

Posted by **helpme!!!!!!!!!** on Sunday, March 15, 2009 at 10:02pm.

a)4x-9y+4

6x+15y=-13

im so lost!!!!!

- 9th grade -
**helpme!!!!!!!!!**, Sunday, March 15, 2009 at 10:05pmsrry

it's

solve and comparison:

a)4x-9y=4

6x+15y=-13

im so lost!!!!!

- 9th grade -
**SraJMcGin**, Sunday, March 15, 2009 at 10:29pmHelp me is NOT the name of this post. Math or Algebra.

Sra

- Algebra -
**PsyDAG**, Monday, March 16, 2009 at 10:38am4x-9y=4

6x+15y=-13

To solve, first isolate x (or y) in one of the equations.

4x = 4 + 9y

x = 1 + 2.25y

Substitute the right hand portion for x in the second equation.

6(1 + 2.25y) + 15y = -13

Solve for y. Put that value into the first equation to solve for x. To check, put both values into the second equation.

I hope this helps. Thanks for asking.

**Answer this Question**

**Related Questions**

grade 9 math slope equations - solve and comparison: a)4x-9y=4 6x+15y=-13 im so ...

math 10 slopes eqaution!!! HELP! please - solve and comparison: a)4x-9y+4 6x+15y...

9th grade geometry - if RS=8y+4, ,,ST=4y+8 and RT=15y-9 find the value of y

math - Riding on a school bus are 20 students in 9th grade, 10 in 10th grade, 9 ...

Math115 - Solve by the elimination method. 5x-15y=2 and 5x-15y =3 Is there a ...

9th grade - A collective noun is plural when the group acts as a unit (i.e., "...

9th grade - solve 3 - (2t + 5) = -12

9th grade - How do you solve ac-bc-ad+bd

9th grade - How do you solve [x-1]=[x+3]

9th grade - A collective noun is plural when the group acts as a unit (i.e., "...