3.63＋1.5X＝8.13解方程 X－0.36X＝12.8解方程

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3.63+1.5x=8.13
1.5x=4.5
x=3

x-0.36x=12.8
0.64x=12.8
x=20

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1.5X=8.13-3.63
1.5X=4.5
X=4.5/桐段卖燃逗1.5
X=3

(1-0.36)X=12.8
0.64X=12.8
X=12.8/局逗0.64
X=20

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1.5x=4.5
x=3

0.64x=12.8
x=20

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x=3

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