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31+x=x+31 is belong to a commutative property where changing the order of the operands does not change the result.

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yes but you cannot derive the answer.....ill show you.....if you will solve the equation
31+x=x+31 x=x+31-31 x
31+x=x+31 so, use additive property to move 31 to the right side of the equation x=x+31-31 right after the x also ,,,so you cannot find the answer cause ma cancel man ang both unless if 1 x ra siya
thank you po ^^
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