-5(4b+4)+(21b-1)=0

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Solution for -5(4b+4)+(21b-1)=0 equation:


Simplifying
-5(4b + 4) + (21b + -1) = 0

Reorder the terms:
-5(4 + 4b) + (21b + -1) = 0
(4 * -5 + 4b * -5) + (21b + -1) = 0
(-20 + -20b) + (21b + -1) = 0

Reorder the terms:
-20 + -20b + (-1 + 21b) = 0

Remove parenthesis around (-1 + 21b)
-20 + -20b + -1 + 21b = 0

Reorder the terms:
-20 + -1 + -20b + 21b = 0

Combine like terms: -20 + -1 = -21
-21 + -20b + 21b = 0

Combine like terms: -20b + 21b = 1b
-21 + 1b = 0

Solving
-21 + 1b = 0

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 + 1b = 0 + 21

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

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

Divide each side by '1'.
b = 21

Simplifying
b = 21

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