题目内容
求知数X
①1.8×3-3X=3
②
:
=
:X.
①1.8×3-3X=3
②
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(1)1.8×3-3X=3,
5.4-3x+3x=3+3x,
5.4-3=3+3x-3,
2.4=3x,
2.4÷3=3x÷3,
x=0.8;
(2)
:
=
:X,
x=
×
,
x÷
=
÷
,
x=
.
5.4-3x+3x=3+3x,
5.4-3=3+3x-3,
2.4=3x,
2.4÷3=3x÷3,
x=0.8;
(2)
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x=
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