-2(b+4)-1=7

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Solution for -2(b+4)-1=7 equation:


Simplifying
-2(b + 4) + -1 = 7

Reorder the terms:
-2(4 + b) + -1 = 7
(4 * -2 + b * -2) + -1 = 7
(-8 + -2b) + -1 = 7

Reorder the terms:
-8 + -1 + -2b = 7

Combine like terms: -8 + -1 = -9
-9 + -2b = 7

Solving
-9 + -2b = 7

Solving for variable 'b'.

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

Add '9' to each side of the equation.
-9 + 9 + -2b = 7 + 9

Combine like terms: -9 + 9 = 0
0 + -2b = 7 + 9
-2b = 7 + 9

Combine like terms: 7 + 9 = 16
-2b = 16

Divide each side by '-2'.
b = -8

Simplifying
b = -8

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