问题
解答题
方程1.3×4+0.2x=6的解是( )
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答案
1.3×4+0.2x=6
5.2+0.2x=6
5.2+0.2x-5.2=6-5.2
0.2x=0.8
0.2x÷0.2=0.8÷0.2
x=4.
故选:C.
方程1.3×4+0.2x=6的解是( )
|
1.3×4+0.2x=6
5.2+0.2x=6
5.2+0.2x-5.2=6-5.2
0.2x=0.8
0.2x÷0.2=0.8÷0.2
x=4.
故选:C.