问题
解答题
解方程.
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答案
(1)x+3.6=8.4,
x+3.6-3.6=8.4-3.6,
x=4.8;
(2)x-2.5=6.5,
x-2.5+2.5=6.5+2.5,
x=9;
(3)x÷1.5=3.6,
x÷1.5×1.5=3.6×1.5,
x=5.4;
(4)2.4x=60,
2.4x,2.4=60÷2.4,
x=25.
解方程.
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(1)x+3.6=8.4,
x+3.6-3.6=8.4-3.6,
x=4.8;
(2)x-2.5=6.5,
x-2.5+2.5=6.5+2.5,
x=9;
(3)x÷1.5=3.6,
x÷1.5×1.5=3.6×1.5,
x=5.4;
(4)2.4x=60,
2.4x,2.4=60÷2.4,
x=25.