(21b-6)-5(4b+4)=-2

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Solution for (21b-6)-5(4b+4)=-2 equation:


Simplifying
(21b + -6) + -5(4b + 4) = -2

Reorder the terms:
(-6 + 21b) + -5(4b + 4) = -2

Remove parenthesis around (-6 + 21b)
-6 + 21b + -5(4b + 4) = -2

Reorder the terms:
-6 + 21b + -5(4 + 4b) = -2
-6 + 21b + (4 * -5 + 4b * -5) = -2
-6 + 21b + (-20 + -20b) = -2

Reorder the terms:
-6 + -20 + 21b + -20b = -2

Combine like terms: -6 + -20 = -26
-26 + 21b + -20b = -2

Combine like terms: 21b + -20b = 1b
-26 + 1b = -2

Solving
-26 + 1b = -2

Solving for variable 'b'.

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

Add '26' to each side of the equation.
-26 + 26 + 1b = -2 + 26

Combine like terms: -26 + 26 = 0
0 + 1b = -2 + 26
1b = -2 + 26

Combine like terms: -2 + 26 = 24
1b = 24

Divide each side by '1'.
b = 24

Simplifying
b = 24

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