-5(4b+1)+(21b-8)=0

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Solution for -5(4b+1)+(21b-8)=0 equation:


Simplifying
-5(4b + 1) + (21b + -8) = 0

Reorder the terms:
-5(1 + 4b) + (21b + -8) = 0
(1 * -5 + 4b * -5) + (21b + -8) = 0
(-5 + -20b) + (21b + -8) = 0

Reorder the terms:
-5 + -20b + (-8 + 21b) = 0

Remove parenthesis around (-8 + 21b)
-5 + -20b + -8 + 21b = 0

Reorder the terms:
-5 + -8 + -20b + 21b = 0

Combine like terms: -5 + -8 = -13
-13 + -20b + 21b = 0

Combine like terms: -20b + 21b = 1b
-13 + 1b = 0

Solving
-13 + 1b = 0

Solving for variable 'b'.

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

Add '13' to each side of the equation.
-13 + 13 + 1b = 0 + 13

Combine like terms: -13 + 13 = 0
0 + 1b = 0 + 13
1b = 0 + 13

Combine like terms: 0 + 13 = 13
1b = 13

Divide each side by '1'.
b = 13

Simplifying
b = 13

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