-21=5+6(b+7)

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


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

Reorder the terms:
-21 = 5 + 6(7 + b)
-21 = 5 + (7 * 6 + b * 6)
-21 = 5 + (42 + 6b)

Combine like terms: 5 + 42 = 47
-21 = 47 + 6b

Solving
-21 = 47 + 6b

Solving for variable 'b'.

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

Add '-6b' to each side of the equation.
-21 + -6b = 47 + 6b + -6b

Combine like terms: 6b + -6b = 0
-21 + -6b = 47 + 0
-21 + -6b = 47

Add '21' to each side of the equation.
-21 + 21 + -6b = 47 + 21

Combine like terms: -21 + 21 = 0
0 + -6b = 47 + 21
-6b = 47 + 21

Combine like terms: 47 + 21 = 68
-6b = 68

Divide each side by '-6'.
b = -11.33333333

Simplifying
b = -11.33333333

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