3-(7-8b)=12b+-5(3b+-8)

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Solution for 3-(7-8b)=12b+-5(3b+-8) equation:


Simplifying
3 + -1(7 + -8b) = 12b + -5(3b + -8)
3 + (7 * -1 + -8b * -1) = 12b + -5(3b + -8)
3 + (-7 + 8b) = 12b + -5(3b + -8)

Combine like terms: 3 + -7 = -4
-4 + 8b = 12b + -5(3b + -8)

Reorder the terms:
-4 + 8b = 12b + -5(-8 + 3b)
-4 + 8b = 12b + (-8 * -5 + 3b * -5)
-4 + 8b = 12b + (40 + -15b)

Reorder the terms:
-4 + 8b = 40 + 12b + -15b

Combine like terms: 12b + -15b = -3b
-4 + 8b = 40 + -3b

Solving
-4 + 8b = 40 + -3b

Solving for variable 'b'.

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

Add '3b' to each side of the equation.
-4 + 8b + 3b = 40 + -3b + 3b

Combine like terms: 8b + 3b = 11b
-4 + 11b = 40 + -3b + 3b

Combine like terms: -3b + 3b = 0
-4 + 11b = 40 + 0
-4 + 11b = 40

Add '4' to each side of the equation.
-4 + 4 + 11b = 40 + 4

Combine like terms: -4 + 4 = 0
0 + 11b = 40 + 4
11b = 40 + 4

Combine like terms: 40 + 4 = 44
11b = 44

Divide each side by '11'.
b = 4

Simplifying
b = 4

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