7(2+3b)=77

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Solution for 7(2+3b)=77 equation: 


Simplifying
7(2 + 3b) = 77
(2 * 7 + 3b * 7) = 77
(14 + 21b) = 77

Solving
14 + 21b = 77

Solving for variable 'b'.

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

Add '-14' to each side of the equation.
14 + -14 + 21b = 77 + -14

Combine like terms: 14 + -14 = 0
0 + 21b = 77 + -14
21b = 77 + -14

Combine like terms: 77 + -14 = 63
21b = 63

Divide each side by '21'.
b = 3

Simplifying
b = 3

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