解方程,四年级的.谢谢,10分钟之内完成.三题.(1)0.5×-13.2×5=6 (2)2.8×4+5×=17.2 (3)0.06+7×=0.72×3 解:0.5×-66=6 解: 解:×=字母x
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![解方程,四年级的.谢谢,10分钟之内完成.三题.(1)0.5×-13.2×5=6 (2)2.8×4+5×=17.2 (3)0.06+7×=0.72×3 解:0.5×-66=6 解: 解:×=字母x](/uploads/image/z/6787889-17-9.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%2C%E5%9B%9B%E5%B9%B4%E7%BA%A7%E7%9A%84.%E8%B0%A2%E8%B0%A2%2C10%E5%88%86%E9%92%9F%E4%B9%8B%E5%86%85%E5%AE%8C%E6%88%90.%E4%B8%89%E9%A2%98.%EF%BC%881%EF%BC%890.5%C3%97-13.2%C3%975%3D6++++++++++%EF%BC%882%EF%BC%892.8%C3%974%2B5%C3%97%3D17.2+++++++%EF%BC%883%EF%BC%890.06%2B7%C3%97%3D0.72%C3%973++%E8%A7%A3%EF%BC%9A0.5%C3%97-66%3D6++++++++++++++++++++%E8%A7%A3%EF%BC%9A+++++++++++++++++++++++++++++++++++%E8%A7%A3%EF%BC%9A%C3%97%3D%E5%AD%97%E6%AF%8Dx)
解方程,四年级的.谢谢,10分钟之内完成.三题.(1)0.5×-13.2×5=6 (2)2.8×4+5×=17.2 (3)0.06+7×=0.72×3 解:0.5×-66=6 解: 解:×=字母x
解方程,四年级的.谢谢,10分钟之内完成.三题.
(1)0.5×-13.2×5=6 (2)2.8×4+5×=17.2 (3)0.06+7×=0.72×3
解:0.5×-66=6 解: 解:
×=字母x
解方程,四年级的.谢谢,10分钟之内完成.三题.(1)0.5×-13.2×5=6 (2)2.8×4+5×=17.2 (3)0.06+7×=0.72×3 解:0.5×-66=6 解: 解:×=字母x
0.5×-13.2×5=6
0.5x-66=6
x-132=6
x=138
2.8×4+5×=17.2
5x=17.2-2.8X4
5x=6
x=1.2
0.06+7×=0.72×3
7x=0.72X3-0.06
7x=2.16-0.06
x=0.3
(1)x=144(2)x=1.2(3)x=0.3
(1)0.5x=72 x=144
(2) 11.2+5x=17.2 5x=6 x=6/5=1.2
(3)0.06+7x=2.16 7x=2.1 x=0.3