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1 vote
4x +2y = 12
-4x + 5y= -5

User Guy Grin
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Please, look at photo :))

-Good luck !
4x +2y = 12 -4x + 5y= -5-example-1
User Diyarbakir
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5 votes

4x+2y=12 \\ \underline{-4x+5y=-5} \\ 2y+5y=12-5 \\ 7y=7 \\ y=(7)/(7) \\ y=1 \\ \\ 4x+2y=12 \\ 4x+2 * 1=12 \\ 4x+2=12 \\ 4x=12-2 \\ 4x=10 \\ x=(10)/(4) \\ x=(5)/(2) \\ x=2 (1)/(2) \\ \\ \boxed{(x,y)=(2 (1)/(2), 1)}
User Kxepal
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