化简:2(x-3)-5(-x+4)
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化简:2(x-3)-5(-x+4)
化简:2(x-3)-5(-x+4)
化简:2(x-3)-5(-x+4)
2(x-3)-5(-x+4)
=2x-6+5x-20
=7x-26
2(x-3)-5(-x+4)
=2x-6+5x-20
=7x-26
2(x-3)-5(-x+4)=7x-26
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