问题
解答题
解方程.
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答案
(1)0.7x-10.05=3.6,
0.7x-10.05+10.05=3.6+10.05,
0.7x=13.65,
0.7x÷0.7=13.65÷0.7,
x=19.5;
(2)5.1x-3.5x=0.8,
1.6x=0.8,
1.6x÷1.6=0.8÷1.6,
x=0.5.
解方程.
|
(1)0.7x-10.05=3.6,
0.7x-10.05+10.05=3.6+10.05,
0.7x=13.65,
0.7x÷0.7=13.65÷0.7,
x=19.5;
(2)5.1x-3.5x=0.8,
1.6x=0.8,
1.6x÷1.6=0.8÷1.6,
x=0.5.