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borishaifa [10]
3 years ago
11

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

Mathematics
2 answers:
DerKrebs [107]3 years ago
7 0
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.
Tanzania [10]3 years ago
6 0
Y=-2x+10 and y=1/2x+5
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