-2-b=-21

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Solution for -2-b=-21 equation:


Simplifying
-2 + -1b = -21

Solving
-2 + -1b = -21

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '2' to each side of the equation.
-2 + 2 + -1b = -21 + 2

Combine like terms: -2 + 2 = 0
0 + -1b = -21 + 2
-1b = -21 + 2

Combine like terms: -21 + 2 = -19
-1b = -19

Divide each side by '-1'.
b = 19

Simplifying
b = 19

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