3(3b-4)=2+7b

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Solution for 3(3b-4)=2+7b equation:


Simplifying
3(3b + -4) = 2 + 7b

Reorder the terms:
3(-4 + 3b) = 2 + 7b
(-4 * 3 + 3b * 3) = 2 + 7b
(-12 + 9b) = 2 + 7b

Solving
-12 + 9b = 2 + 7b

Solving for variable 'b'.

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

Add '-7b' to each side of the equation.
-12 + 9b + -7b = 2 + 7b + -7b

Combine like terms: 9b + -7b = 2b
-12 + 2b = 2 + 7b + -7b

Combine like terms: 7b + -7b = 0
-12 + 2b = 2 + 0
-12 + 2b = 2

Add '12' to each side of the equation.
-12 + 12 + 2b = 2 + 12

Combine like terms: -12 + 12 = 0
0 + 2b = 2 + 12
2b = 2 + 12

Combine like terms: 2 + 12 = 14
2b = 14

Divide each side by '2'.
b = 7

Simplifying
b = 7

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