-5(4b+3)+(21b-3)=0

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Solution for -5(4b+3)+(21b-3)=0 equation:


Simplifying
-5(4b + 3) + (21b + -3) = 0

Reorder the terms:
-5(3 + 4b) + (21b + -3) = 0
(3 * -5 + 4b * -5) + (21b + -3) = 0
(-15 + -20b) + (21b + -3) = 0

Reorder the terms:
-15 + -20b + (-3 + 21b) = 0

Remove parenthesis around (-3 + 21b)
-15 + -20b + -3 + 21b = 0

Reorder the terms:
-15 + -3 + -20b + 21b = 0

Combine like terms: -15 + -3 = -18
-18 + -20b + 21b = 0

Combine like terms: -20b + 21b = 1b
-18 + 1b = 0

Solving
-18 + 1b = 0

Solving for variable 'b'.

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

Add '18' to each side of the equation.
-18 + 18 + 1b = 0 + 18

Combine like terms: -18 + 18 = 0
0 + 1b = 0 + 18
1b = 0 + 18

Combine like terms: 0 + 18 = 18
1b = 18

Divide each side by '1'.
b = 18

Simplifying
b = 18

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