4.8X-(4X-3)=48 36×(2X-3.6)=72解方程
问题描述:
4.8X-(4X-3)=48 36×(2X-3.6)=72解方程
答
4.8x-(4x-3)=48
4.8x-4x+3=48
0.8x=48-3
0.8x=45
x=45÷08
x=56.25
36×(2x-3.6)=72
72x-129.6=72
72x=72+129.6
72x=201.6
x=201.6÷72
x=2.8
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答
4.8X-(4X-3)=48
4.8X-4X+3=48
0.8x=45
x=45÷0.8
=56.25
36×(2X-3.6)=72
2X-3.6=72÷36
2x-3.6=2
2x=5.6
x=2.8
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答
4.8X-(4X-3)=48
4.8X-4X+3=48
0.8X=48-3
0.8X=45
x=56.25
36×(2X-3.6)=72
2x-3.6=2
2x=2+3.6
2x=5.6
x=2.8