Posted by **erica** on Saturday, March 21, 2009 at 4:29pm.

i need to know how to solve certain problems like this

4x=2y-10

x+2y=5

i need examples of this and shown to me step by step

- algebra 1b -
**NiiCii**, Saturday, March 21, 2009 at 6:34pm
4x=2y-10

[step 1] -2y -2y

-2y+4x=-10

[step 2] -4x -4x

-2y=-4x-10

[step 3] divide both sides by -2

y=2x+5 «answer!!

- algebra 1b -
**PsyDAG**, Sunday, March 22, 2009 at 11:35am
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.

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