skybae345 skybae345

07-03-2015
Mathematics

Answered

-2x+y=12
3x+2y=38
You have to use substitution to solve this problem

Answer :

07-03-2015

{-2x+y=12 => y=12+2x

{3x+2y=38

3x+2(12+2x)=38

3x+24+4x=38 /-24

7x=14 /:7

x=2

y=12+2*2=12+4=16

y=16

Solution: (2; 16)

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