21-14b=-7

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Solution for 21-14b=-7 equation: 


Simplifying
21 + -14b = -7

Solving
21 + -14b = -7

Solving for variable 'b'.

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

Add '-21' to each side of the equation.
21 + -21 + -14b = -7 + -21

Combine like terms: 21 + -21 = 0
0 + -14b = -7 + -21
-14b = -7 + -21

Combine like terms: -7 + -21 = -28
-14b = -28

Divide each side by '-14'.
b = 2

Simplifying
b = 2

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