Question

HELP!!! how do you solve for x and y in the following equations using substitution??

Answer 1

If y+2x=10, then y=10-2x
then you use this equation in the: 2y-x=10
that means… 2(10-2x)-x=10
20-4x-x=10
-5x=10-20
so x= 2
after that you put x value in the second equation:
y+4=10
y= 10-4=6
Hope that is OK for you.

Answer 2

Y=-2x+10 and y=1/2x+5