Homework Help: algebra ll

Posted by kara on Monday, August 11, 2008 at 11:31pm.

To solve the system of equations, which expression could be substituted for x into the first equation?

3x-5y=14
x+4y=10

a)10-4y
b)4y+10
c)(1/4)x+(5/2)
d)(-1/4)x+(5/2)

algebra ll - drwls, Tuesday, August 12, 2008 at 2:38am
Since x + 4y = 10,
x = 10 -4y

That is all they are asking for. They aren't asking you to solve the two equations.
- algebra ll - Anonymous,, Friday, August 15, 2008 at 3:53pm
  the firsr equation of the system is mutiplied by 2,by what number would you mutiply the second equation to eliminate the x variable by adding. first:6x - 5y =21 4x+7y= 15 when i did the promblem i got 2 chooses -3 or -2 im not sure which one
- algebra ll - Anonymous,, Friday, August 15, 2008 at 4:00pm
  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

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