3(7-b)=-6

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


Simplifying
3(7 + -1b) = -6
(7 * 3 + -1b * 3) = -6
(21 + -3b) = -6

Solving
21 + -3b = -6

Solving for variable 'b'.

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

Add '-21' to each side of the equation.
21 + -21 + -3b = -6 + -21

Combine like terms: 21 + -21 = 0
0 + -3b = -6 + -21
-3b = -6 + -21

Combine like terms: -6 + -21 = -27
-3b = -27

Divide each side by '-3'.
b = 9

Simplifying
b = 9

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