[7(b+4)-16]-[2(b-4)+3]=

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Solution for [7(b+4)-16]-[2(b-4)+3]= equation:


Simplifying
[7(b + 4) + -16] + -1[2(b + -4) + 3] = 0

Reorder the terms:
[7(4 + b) + -16] + -1[2(b + -4) + 3] = 0
[(4 * 7 + b * 7) + -16] + -1[2(b + -4) + 3] = 0
[(28 + 7b) + -16] + -1[2(b + -4) + 3] = 0

Reorder the terms:
[28 + -16 + 7b] + -1[2(b + -4) + 3] = 0

Combine like terms: 28 + -16 = 12
[12 + 7b] + -1[2(b + -4) + 3] = 0

Remove brackets around [12 + 7b]
12 + 7b + -1[2(b + -4) + 3] = 0

Reorder the terms:
12 + 7b + -1[2(-4 + b) + 3] = 0
12 + 7b + -1[(-4 * 2 + b * 2) + 3] = 0
12 + 7b + -1[(-8 + 2b) + 3] = 0

Reorder the terms:
12 + 7b + -1[-8 + 3 + 2b] = 0

Combine like terms: -8 + 3 = -5
12 + 7b + -1[-5 + 2b] = 0
12 + 7b + [-5 * -1 + 2b * -1] = 0
12 + 7b + [5 + -2b] = 0

Reorder the terms:
12 + 5 + 7b + -2b = 0

Combine like terms: 12 + 5 = 17
17 + 7b + -2b = 0

Combine like terms: 7b + -2b = 5b
17 + 5b = 0

Solving
17 + 5b = 0

Solving for variable 'b'.

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

Add '-17' to each side of the equation.
17 + -17 + 5b = 0 + -17

Combine like terms: 17 + -17 = 0
0 + 5b = 0 + -17
5b = 0 + -17

Combine like terms: 0 + -17 = -17
5b = -17

Divide each side by '5'.
b = -3.4

Simplifying
b = -3.4

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