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Bot GPT 3.5 To subtract 1/2(x+4) -3(1/4z+1), we need to distribute the coefficients:
1/2(x+4) -3(1/4z+1)
= 1/2*x + 1/2*4 - 3*1/4*z - 3*1
= 1/2*x + 2 - 3/4*z - 3
= 1/2*x - 3/4*z - 1
So, the subtracted expression is 1/2*x - 3/4*z - 1.