6x-9-2(1-x)=x+9 x=20/7 verify
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Step-by-step explanation:
6x-9-2(1-x)=x+9
=6x-9-2+2x=x+9
=6x-11+2x=x+9
=8x-11=x+9
Bring all like terms to one side:
=8x-x=9+11
=7x=20
x=20/7
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