12b+36=-21-7b

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Solution for 12b+36=-21-7b equation:


Simplifying
12b + 36 = -21 + -7b

Reorder the terms:
36 + 12b = -21 + -7b

Solving
36 + 12b = -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.
36 + 12b + 7b = -21 + -7b + 7b

Combine like terms: 12b + 7b = 19b
36 + 19b = -21 + -7b + 7b

Combine like terms: -7b + 7b = 0
36 + 19b = -21 + 0
36 + 19b = -21

Add '-36' to each side of the equation.
36 + -36 + 19b = -21 + -36

Combine like terms: 36 + -36 = 0
0 + 19b = -21 + -36
19b = -21 + -36

Combine like terms: -21 + -36 = -57
19b = -57

Divide each side by '19'.
b = -3

Simplifying
b = -3

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