解方程或比例.1+0.6x=9.5x-0.25=1234x+16x=6636x=5431.25:0.25=x:2.434:56=14:x.-数学
题文
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答案
(1)1+0.6x=9.5, 1+0.6x-1=9.5-1, 0.6x÷0.6=8.5÷0.6, x=14
(2)x-0.25=
x-0.25+0.25=
x=0.75; (3)
x=72; (4)
54x=36×3, 54x÷54=108÷54, x=2; (5)1.25:0.25=x:2.4, 0.25x=1.25×2.4, 0.25x÷0.25=3÷0.25, x=12; (6)
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