-6(b-4)=21-7b

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Solution for -6(b-4)=21-7b equation:


Simplifying
-6(b + -4) = 21 + -7b

Reorder the terms:
-6(-4 + b) = 21 + -7b
(-4 * -6 + b * -6) = 21 + -7b
(24 + -6b) = 21 + -7b

Solving
24 + -6b = 21 + -7b

Solving for variable 'b'.

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

Add '7b' to each side of the equation.
24 + -6b + 7b = 21 + -7b + 7b

Combine like terms: -6b + 7b = 1b
24 + 1b = 21 + -7b + 7b

Combine like terms: -7b + 7b = 0
24 + 1b = 21 + 0
24 + 1b = 21

Add '-24' to each side of the equation.
24 + -24 + 1b = 21 + -24

Combine like terms: 24 + -24 = 0
0 + 1b = 21 + -24
1b = 21 + -24

Combine like terms: 21 + -24 = -3
1b = -3

Divide each side by '1'.
b = -3

Simplifying
b = -3

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