解方程:X-45=382X-5.8=6.6X-(521+37)=2345-3X=14.-数学
题文
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答案
(1)x-
x-
x=
(2)2X-5.8=6.6, 2X-5.8+5.8=6.6+5.8, 2x=12.4, 2x÷2=12.4÷2, x=6.2; (3)x-(
x-
x-
x=
(4)
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题文
|
答案
(1)x-
x-
x=
(2)2X-5.8=6.6, 2X-5.8+5.8=6.6+5.8, 2x=12.4, 2x÷2=12.4÷2, x=6.2; (3)x-(
x-
x-
x=
(4)
|