X + (3X+1) + (1/2X-1)= 180 帮我解一下这个方程,谢谢,现在就要ww,谢
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X + (3X+1) + (1/2X-1)= 180 帮我解一下这个方程,谢谢,现在就要ww,谢
X + (3X+1) + (1/2X-1)= 180 帮我解一下这个方程,谢谢,现在就要ww,谢
X + (3X+1) + (1/2X-1)= 180 帮我解一下这个方程,谢谢,现在就要ww,谢
X+3X+1+1/2X-1=180
9/2X=180
X=40.
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