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Anonymous
2x-11=10 then
2x=21 so x =21/2
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2x+10=9+11-3x2x+10=20-3x5x+10=205x=10x=2
X=5Y= 92x + 11= ?2(5)+11=?10+11= 21
2x-3 = 11 2x = 11+3 2x = 14 x = 7
x = -1
2x+10=12 2x=2 x=1