51=5b+7-9b

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Solution for 51=5b+7-9b equation:


Simplifying
51 = 5b + 7 + -9b

Reorder the terms:
51 = 7 + 5b + -9b

Combine like terms: 5b + -9b = -4b
51 = 7 + -4b

Solving
51 = 7 + -4b

Solving for variable 'b'.

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

Add '4b' to each side of the equation.
51 + 4b = 7 + -4b + 4b

Combine like terms: -4b + 4b = 0
51 + 4b = 7 + 0
51 + 4b = 7

Add '-51' to each side of the equation.
51 + -51 + 4b = 7 + -51

Combine like terms: 51 + -51 = 0
0 + 4b = 7 + -51
4b = 7 + -51

Combine like terms: 7 + -51 = -44
4b = -44

Divide each side by '4'.
b = -11

Simplifying
b = -11

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