3(3+4b)=6(b+7)-5b

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Solution for 3(3+4b)=6(b+7)-5b equation:


Simplifying
3(3 + 4b) = 6(b + 7) + -5b
(3 * 3 + 4b * 3) = 6(b + 7) + -5b
(9 + 12b) = 6(b + 7) + -5b

Reorder the terms:
9 + 12b = 6(7 + b) + -5b
9 + 12b = (7 * 6 + b * 6) + -5b
9 + 12b = (42 + 6b) + -5b

Combine like terms: 6b + -5b = 1b
9 + 12b = 42 + 1b

Solving
9 + 12b = 42 + 1b

Solving for variable 'b'.

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

Add '-1b' to each side of the equation.
9 + 12b + -1b = 42 + 1b + -1b

Combine like terms: 12b + -1b = 11b
9 + 11b = 42 + 1b + -1b

Combine like terms: 1b + -1b = 0
9 + 11b = 42 + 0
9 + 11b = 42

Add '-9' to each side of the equation.
9 + -9 + 11b = 42 + -9

Combine like terms: 9 + -9 = 0
0 + 11b = 42 + -9
11b = 42 + -9

Combine like terms: 42 + -9 = 33
11b = 33

Divide each side by '11'.
b = 3

Simplifying
b = 3

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