a-b=3ab,则代数式2a-2b-ab/a-b+2ab的值是()

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a-b=3ab,则代数式2a-2b-ab/a-b+2ab的值是()a-b=3ab,则代数式2a-2b-ab/a-b+2ab的值是()a-b=3ab,则代数式2a-2b-ab/a-b+2ab的值是()2

a-b=3ab,则代数式2a-2b-ab/a-b+2ab的值是()
a-b=3ab,则代数式2a-2b-ab/a-b+2ab的值是()

a-b=3ab,则代数式2a-2b-ab/a-b+2ab的值是()
2a-2b-ab/a-b+2ab
=(6ab-ab)/(3ab+2ab)
=5ab/5ab
=1