Question 311160
let one number be x
the other number be y
.
y=2x+1
y-2x=1
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x+y=3y-20
x-2y=-20
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2(y-2x)+x-2y=2-20
2y-4x+x-2y=-18
-3x=-18
x= 6
y=2x+1
y=12+1
y=13


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