(12-3b)-7d=

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Solution for (12-3b)-7d= equation:


Simplifying
(12 + -3b) + -7d = 0

Remove parenthesis around (12 + -3b)
12 + -3b + -7d = 0

Solving
12 + -3b + -7d = 0

Solving for variable 'b'.

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

Add '-12' to each side of the equation.
12 + -3b + -12 + -7d = 0 + -12

Reorder the terms:
12 + -12 + -3b + -7d = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -3b + -7d = 0 + -12
-3b + -7d = 0 + -12

Combine like terms: 0 + -12 = -12
-3b + -7d = -12

Add '7d' to each side of the equation.
-3b + -7d + 7d = -12 + 7d

Combine like terms: -7d + 7d = 0
-3b + 0 = -12 + 7d
-3b = -12 + 7d

Divide each side by '-3'.
b = 4 + -2.333333333d

Simplifying
b = 4 + -2.333333333d

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