9(6b+7)=21-5b

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Solution for 9(6b+7)=21-5b equation:


Simplifying
9(6b + 7) = 21 + -5b

Reorder the terms:
9(7 + 6b) = 21 + -5b
(7 * 9 + 6b * 9) = 21 + -5b
(63 + 54b) = 21 + -5b

Solving
63 + 54b = 21 + -5b

Solving for variable 'b'.

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

Add '5b' to each side of the equation.
63 + 54b + 5b = 21 + -5b + 5b

Combine like terms: 54b + 5b = 59b
63 + 59b = 21 + -5b + 5b

Combine like terms: -5b + 5b = 0
63 + 59b = 21 + 0
63 + 59b = 21

Add '-63' to each side of the equation.
63 + -63 + 59b = 21 + -63

Combine like terms: 63 + -63 = 0
0 + 59b = 21 + -63
59b = 21 + -63

Combine like terms: 21 + -63 = -42
59b = -42

Divide each side by '59'.
b = -0.7118644068

Simplifying
b = -0.7118644068

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