Posted by kara on .
To solve the system of equations, which expression could be substituted for x into the first equation?
3x5y=14
x+4y=10
a)104y
b)4y+10
c)(1/4)x+(5/2)
d)(1/4)x+(5/2)

algebra ll 
drwls,
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,,
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,,
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