-5(4B+1)+(21B-9)=0

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Solution for -5(4B+1)+(21B-9)=0 equation:


Simplifying
-5(4B + 1) + (21B + -9) = 0

Reorder the terms:
-5(1 + 4B) + (21B + -9) = 0
(1 * -5 + 4B * -5) + (21B + -9) = 0
(-5 + -20B) + (21B + -9) = 0

Reorder the terms:
-5 + -20B + (-9 + 21B) = 0

Remove parenthesis around (-9 + 21B)
-5 + -20B + -9 + 21B = 0

Reorder the terms:
-5 + -9 + -20B + 21B = 0

Combine like terms: -5 + -9 = -14
-14 + -20B + 21B = 0

Combine like terms: -20B + 21B = 1B
-14 + 1B = 0

Solving
-14 + 1B = 0

Solving for variable 'B'.

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

Add '14' to each side of the equation.
-14 + 14 + 1B = 0 + 14

Combine like terms: -14 + 14 = 0
0 + 1B = 0 + 14
1B = 0 + 14

Combine like terms: 0 + 14 = 14
1B = 14

Divide each side by '1'.
B = 14

Simplifying
B = 14

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