Question 180306
Substituting y=2x+6 to 4x+2y=13,

4x+2(2x+6)=13
4x+4x+12=13
8x=1
x=1/8

y=2(1/8)+6=1/4+6=1/4+24/4=25/4

Therefore, x=1/8 y=25/4

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