RE: IQ test

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IQ test

in iq •  6 years ago 

3x=9
x+2y=5
y+2z=15
z+y+z=?
x=9/3=3
3+2y=5 \\\2y=2\\\y=1
1+2z=15\\\2z=14\\\z=7
x+y+z=1+3+7=11.

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