i need to know how to solve certain problems like this

Question

4x=2y-10
x+2y=5
i need examples of this and shown to me step by step

Answer 1

　　　　　　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!!

Answer 2

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.