Posted by **Anonymous,** on Friday, August 15, 2008 at 4:02pm.

the first equation of the system is mutiplied by 4, by what number would you mutiply the second equation to eliminate the y variable by adding? first: 2x+5y=16 second:8x - 4y =10 i got 2 0r 5 im not sure which one

- algebra ll -
**bobpursley**, Friday, August 15, 2008 at 4:15pm
Mulitpy it by 5, so that the coefficent of y in each is 20.

- algebra ll -
**Anonymous,**, Friday, August 15, 2008 at 4:20pm
so the answer is negative 5 right

- algebra ll -
**drwls**, Friday, August 15, 2008 at 4:39pm
No. It is +5, as Bob correcly stated. The coefficient of y in the second equation then becomes -20, so you can eliminate that variable by adding to the first equation.

## Answer This Question

## Related Questions

- algebra ll - the first equation of the system is mutiplied by 2,by what number ...
- algebra ll - the first equation of the system is muti plied by 2. by what number...
- algebra 2(check) - 1)Choose the correct description of the system of equations:...
- algebra II - Select the best possible first step to solving the system by first ...
- math help pls pls - Two systems of equations are shown below: System A 6x + y...
- Algebra 2 - 1.) Write a system of equations that has NO solution. 2.) If you ...
- Algebra 2 - 1.) Write a system of equations that has NO solution. 2.) If you ...
- Algebra 2 - 1.) Write a system of equations that has NO solution. 2.) If you ...
- correction of math - can someone correct this for me please. Directions: Solve ...
- physics - What are the magnitude and direction of the particleâ€™s acceleration? ...

More Related Questions