
4x+7.2x-2.5x=26.1解方程?
2个回答
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4x+7.2x-2.5x=26.1
(4+7.2-2.5)x = 26.1
(11.2-2.5)x = 26.1
8.7x = 26.1
x = 26.1 ÷ 8.7
x = 3
(4+7.2-2.5)x = 26.1
(11.2-2.5)x = 26.1
8.7x = 26.1
x = 26.1 ÷ 8.7
x = 3
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