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问题
解答题
解方程:
x-1
2
=4-
2x-4
3
答案
去分母得:3(x-1)=24-2(2x-4)
去括号得:3x-3=24-4x+8,
移项、合并得:7x=35,
方程两边都除以7得:x=5
选择题
— Would you do me a favor of posting the letter?
— _____ .
A. It's a pleasure.
B. No trouble.
C. You've got a point there.
D. With pleasure
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填空题
砌筑1立方米的砖墙体需砖()块(不计损耗)。
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