(-7b+4b)=(6b-9b)

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Solution for (-7b+4b)=(6b-9b) equation: 



(-7b+4b)=(6b-9b)

We move all terms to the left:

(-7b+4b)-((6b-9b))=0

We add all the numbers together, and all the variables

(-3b)-((-3b))=0

We get rid of parentheses

-3b-((-3b))=0



We calculate terms in parentheses: -((-3b)), so:

(-3b)

We get rid of parentheses

-3b

Back to the equation:

-(-3b)



We get rid of parentheses

-3b+3b=0

We add all the numbers together, and all the variables

=0

b=0/1

b=0

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