Posted by erica on .
i need to know how to solve certain problems like this
4x=2y10
x+2y=5
i need examples of this and shown to me step by step

algebra 1b 
NiiCii,
4x=2y10
[step 1] 2y 2y
2y+4x=10
[step 2] 4x 4x
2y=4x10
[step 3] divide both sides by 2
y=2x+5 Â«answer!! 
algebra 1b 
PsyDAG,
With first equation get x alone on one side.
x = .5y  2.5
Substitute that value for x in the second equation and solve for y. Put that y value into the first equation to find value of x. To check, put both values into the second equation.
I hope this helps a little more. Thanks for asking.