(1)计算:(1)(-4) 3 -4×(- 1 2 ) 2 (2)化简:2x-(3x- x-1 2 )+[5x-
(1)计算:(1)(-4)3-4×(-12)2(2)化简:2x-(3x-x-12)+[5x-32(x-2)](3)解方程:y-12=12y-2....
(1)计算:(1)(-4) 3 -4×(- 1 2 ) 2 (2)化简:2x-(3x- x-1 2 )+[5x- 3 2 (x-2)](3)解方程:y- 1 2 = 1 2 y-2.
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