No.
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( 2 + 7 ) + 10 = ( 7 + 10 ) + 2 ( 3 * 9 ) * 4 = 3 * ( 9 * 4 ) The associative property means you can move the terms of the expression around without changing the value. Multiplication and addition are both associative.
The general example is given as "a + (b + c) = (a + b) + c"; a numeral example might be "7 + (3 + 14) = (7 + 3) + 14".
Zero is the identity under addition.
(1, -1)
(a + b) + c = a + (b + c) the parenthesis means you are supposed to add a and b first on the left, but the property tells you it is ok to regroup and add b and c first... you will get the same answer ( 3 + 6) + 7 gives the same answer as 3 + (6 + 7)