3*9-2b=-2

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Solution for 3*9-2b=-2 equation: 


Simplifying
3 * 9 + -2b = -2

Multiply 3 * 9
27 + -2b = -2

Solving
27 + -2b = -2

Solving for variable 'b'.

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

Add '-27' to each side of the equation.
27 + -27 + -2b = -2 + -27

Combine like terms: 27 + -27 = 0
0 + -2b = -2 + -27
-2b = -2 + -27

Combine like terms: -2 + -27 = -29
-2b = -29

Divide each side by '-2'.
b = 14.5

Simplifying
b = 14.5

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