I will mark the right answer brainliest.
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I will mark the right answer brainliest.
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(1/3)x=(2/7)x+1
(1/3--2/7)x=1
(7-6)x/21=1
x/21=1
x=21
explanation
1/3of 21 is 7,which exceeds 2/7 of 21(that is 6) by one