30=-9b-13

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Solution for 30=-9b-13 equation:


Simplifying
30 = -9b + -13

Reorder the terms:
30 = -13 + -9b

Solving
30 = -13 + -9b

Solving for variable 'b'.

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

Add '9b' to each side of the equation.
30 + 9b = -13 + -9b + 9b

Combine like terms: -9b + 9b = 0
30 + 9b = -13 + 0
30 + 9b = -13

Add '-30' to each side of the equation.
30 + -30 + 9b = -13 + -30

Combine like terms: 30 + -30 = 0
0 + 9b = -13 + -30
9b = -13 + -30

Combine like terms: -13 + -30 = -43
9b = -43

Divide each side by '9'.
b = -4.777777778

Simplifying
b = -4.777777778

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