3(b+7)=12(b+1)

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Solution for 3(b+7)=12(b+1) equation:


Simplifying
3(b + 7) = 12(b + 1)

Reorder the terms:
3(7 + b) = 12(b + 1)
(7 * 3 + b * 3) = 12(b + 1)
(21 + 3b) = 12(b + 1)

Reorder the terms:
21 + 3b = 12(1 + b)
21 + 3b = (1 * 12 + b * 12)
21 + 3b = (12 + 12b)

Solving
21 + 3b = 12 + 12b

Solving for variable 'b'.

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

Add '-12b' to each side of the equation.
21 + 3b + -12b = 12 + 12b + -12b

Combine like terms: 3b + -12b = -9b
21 + -9b = 12 + 12b + -12b

Combine like terms: 12b + -12b = 0
21 + -9b = 12 + 0
21 + -9b = 12

Add '-21' to each side of the equation.
21 + -21 + -9b = 12 + -21

Combine like terms: 21 + -21 = 0
0 + -9b = 12 + -21
-9b = 12 + -21

Combine like terms: 12 + -21 = -9
-9b = -9

Divide each side by '-9'.
b = 1

Simplifying
b = 1

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