A=-2x+3
B=3x-5
hasil dari b-2a=3x-5 - 2(-2x+3)
3x-5 - (-4x+6)
3x-5+4x-6=7x-11
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A=-2x+3
B=3x-5
hasil dari b-2a=3x-5 - 2(-2x+3)
3x-5 - (-4x+6)
3x-5+4x-6=7x-11