题目内容
12x+7×30%=14.7
(x+4)÷8=1.5
-0.6x=
.
(x+4)÷8=1.5
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(1)12x+7×30%=14.7,
12x+2.1-2.1=14.7-2.1,
12x÷12=12.6÷12,
x=1.05;
(2)(x+4)÷8=1.5,
(x+4)÷8×8=1.5×8,
x+4-4=12-4,
x=8;
(3)
-0.6x=
,
-0.6x+0.6x=
+0.6x,
-
=
+0.6x-
,
÷0.6=0.6x÷0.6,
x=
.
12x+2.1-2.1=14.7-2.1,
12x÷12=12.6÷12,
x=1.05;
(2)(x+4)÷8=1.5,
(x+4)÷8×8=1.5×8,
x+4-4=12-4,
x=8;
(3)
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x=
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