29-b=21

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Solution for 29-b=21 equation:


Simplifying
29 + -1b = 21

Solving
29 + -1b = 21

Solving for variable 'b'.

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

Add '-29' to each side of the equation.
29 + -29 + -1b = 21 + -29

Combine like terms: 29 + -29 = 0
0 + -1b = 21 + -29
-1b = 21 + -29

Combine like terms: 21 + -29 = -8
-1b = -8

Divide each side by '-1'.
b = 8

Simplifying
b = 8

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