-21+8b=9(5b-6)

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Solution for -21+8b=9(5b-6) equation:


Simplifying
-21 + 8b = 9(5b + -6)

Reorder the terms:
-21 + 8b = 9(-6 + 5b)
-21 + 8b = (-6 * 9 + 5b * 9)
-21 + 8b = (-54 + 45b)

Solving
-21 + 8b = -54 + 45b

Solving for variable 'b'.

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

Add '-45b' to each side of the equation.
-21 + 8b + -45b = -54 + 45b + -45b

Combine like terms: 8b + -45b = -37b
-21 + -37b = -54 + 45b + -45b

Combine like terms: 45b + -45b = 0
-21 + -37b = -54 + 0
-21 + -37b = -54

Add '21' to each side of the equation.
-21 + 21 + -37b = -54 + 21

Combine like terms: -21 + 21 = 0
0 + -37b = -54 + 21
-37b = -54 + 21

Combine like terms: -54 + 21 = -33
-37b = -33

Divide each side by '-37'.
b = 0.8918918919

Simplifying
b = 0.8918918919

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