Let x, y be numbers.
The addition identity property states that 0 + x = x.
The commutative property states that x + y = y + x
1- 1 2/5
2- 4 1/2
3- 1 1/8
4- 1 5/6
5- 12/17
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3x-1=20
3*7=21-1=20
The answer would be x=7
<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em> </em><em>.</em><em>.</em><em>.</em>