-10b=40

Divide each term in -10b=40 by -10.

-10b-10=40-10

Cancel the common factor.

-10b-10=40-10

Divide b by 1.

b=40-10

b=40-10

Divide 40 by -10.

b=-4

Simplify -10b=40

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# Simplify -10b=40

-10b=40

Divide each term in -10b=40 by -10.

-10b-10=40-10

Cancel the common factor.

-10b-10=40-10

Divide b by 1.

b=40-10

b=40-10

Divide 40 by -10.

b=-4

Simplify -10b=40