3-b=-4

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Solution for 3-b=-4 equation: 


Simplifying
3 + -1b = -4

Solving
3 + -1b = -4

Solving for variable 'b'.

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

Add '-3' to each side of the equation.
3 + -3 + -1b = -4 + -3

Combine like terms: 3 + -3 = 0
0 + -1b = -4 + -3
-1b = -4 + -3

Combine like terms: -4 + -3 = -7
-1b = -7

Divide each side by '-1'.
b = 7

Simplifying
b = 7

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