-2[4-(3b+6)]=7-6(3b+9)

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Solution for -2[4-(3b+6)]=7-6(3b+9) equation:


Simplifying
-2[4 + -1(3b + 6)] = 7 + -6(3b + 9)

Reorder the terms:
-2[4 + -1(6 + 3b)] = 7 + -6(3b + 9)
-2[4 + (6 * -1 + 3b * -1)] = 7 + -6(3b + 9)
-2[4 + (-6 + -3b)] = 7 + -6(3b + 9)

Combine like terms: 4 + -6 = -2
-2[-2 + -3b] = 7 + -6(3b + 9)
[-2 * -2 + -3b * -2] = 7 + -6(3b + 9)
[4 + 6b] = 7 + -6(3b + 9)

Reorder the terms:
4 + 6b = 7 + -6(9 + 3b)
4 + 6b = 7 + (9 * -6 + 3b * -6)
4 + 6b = 7 + (-54 + -18b)

Combine like terms: 7 + -54 = -47
4 + 6b = -47 + -18b

Solving
4 + 6b = -47 + -18b

Solving for variable 'b'.

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

Add '18b' to each side of the equation.
4 + 6b + 18b = -47 + -18b + 18b

Combine like terms: 6b + 18b = 24b
4 + 24b = -47 + -18b + 18b

Combine like terms: -18b + 18b = 0
4 + 24b = -47 + 0
4 + 24b = -47

Add '-4' to each side of the equation.
4 + -4 + 24b = -47 + -4

Combine like terms: 4 + -4 = 0
0 + 24b = -47 + -4
24b = -47 + -4

Combine like terms: -47 + -4 = -51
24b = -51

Divide each side by '24'.
b = -2.125

Simplifying
b = -2.125

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