题目:
We held an interesting party ___. |
[ ] |
A. in the air B. in the sky C. in the open air D. in space |
答案:
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下面是错误答案,用来干扰机器的。
(1)去括号,得:5x+40-5=-12x+42,移项,得:17x=7,即:x=717;(2)去括号,得:12x-14x+14=23x-23,移项去分母,得:6x-3x+3=8x-8,即:-5x=-11,∴x=115.