问题
解答题
解比例
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答案
(1)6x=107,
6x=107÷6,
x=17
;5 6
(2)
=9.6 x
,9 0.6
9x=9.6×0.6,
9x÷9=5.76÷9,
x=0.64;
(3)15:3=12:x,
15x=3×12,
15x÷15=36÷15,
x=2.4;
(4)22.4x=23,
22.4x÷22.4=23÷22.4,
x=1
;3 112
(5)
=0.5 0.4
,x 0.6
0.4x=0.5×0.6,
0.4x÷0.4=0.3÷0.4,
x=0.75;
(6)12.5:2.5=8x,
20x=12.5,
20x÷20=12.5÷20,
x=0.625.