[3+2b]-7=-7

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Solution for [3+2b]-7=-7 equation: 


Simplifying
[3 + 2b] + -7 = -7

Remove brackets around [3 + 2b]
3 + 2b + -7 = -7

Reorder the terms:
3 + -7 + 2b = -7

Combine like terms: 3 + -7 = -4
-4 + 2b = -7

Solving
-4 + 2b = -7

Solving for variable 'b'.

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

Add '4' to each side of the equation.
-4 + 4 + 2b = -7 + 4

Combine like terms: -4 + 4 = 0
0 + 2b = -7 + 4
2b = -7 + 4

Combine like terms: -7 + 4 = -3
2b = -3

Divide each side by '2'.
b = -1.5

Simplifying
b = -1.5

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