题目内容
解方程
65%x-
x=1
×6
8(x-2)=2(x+7)
x+8×0.5=16.
65%x-
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8(x-2)=2(x+7)
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(1)65%x-
x=1
×6,
x=
,
x×
=
×
,
x=75;
(2)8(x-2)=2(x+7),
8x-16=2x+14,
8x-16-2x=2x+14-2x,
6x-16+16=14+16,
6x÷6=30÷6,
x=5;
(3)
x+8×0.5=16,
x+4=16,
x+4-4=16-4,
x×
=12×
,
x=9.
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x=75;
(2)8(x-2)=2(x+7),
8x-16=2x+14,
8x-16-2x=2x+14-2x,
6x-16+16=14+16,
6x÷6=30÷6,
x=5;
(3)
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x=9.
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