Which is an identity?, y=3, 4<7, x+x=2x, 2+3=5, An identity is true for?, one number, all values, two numbers, no values, Complete: a+0 = ?, a, 1, a0, 0, Complete: a×1 = ?, 1, 0, a+1, a, Complete: a-a = ?, 2a, 0, 1, a, Complete: a+a = ?, 0, a^2, 2a, a2, Complete: a×0 = ?, a0, a, 1, 0, Which is always true?, x-x=0, x=5, x<0, x+1=x, Complete: b+(-b) = ?, -b, 2b, 0, b, Complete: c÷1 = ?, 1, c+1, 0, c

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