64=2(1-5b)-3(7b+7)

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Solution for 64=2(1-5b)-3(7b+7) equation:


Simplifying
64 = 2(1 + -5b) + -3(7b + 7)
64 = (1 * 2 + -5b * 2) + -3(7b + 7)
64 = (2 + -10b) + -3(7b + 7)

Reorder the terms:
64 = 2 + -10b + -3(7 + 7b)
64 = 2 + -10b + (7 * -3 + 7b * -3)
64 = 2 + -10b + (-21 + -21b)

Reorder the terms:
64 = 2 + -21 + -10b + -21b

Combine like terms: 2 + -21 = -19
64 = -19 + -10b + -21b

Combine like terms: -10b + -21b = -31b
64 = -19 + -31b

Solving
64 = -19 + -31b

Solving for variable 'b'.

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

Add '31b' to each side of the equation.
64 + 31b = -19 + -31b + 31b

Combine like terms: -31b + 31b = 0
64 + 31b = -19 + 0
64 + 31b = -19

Add '-64' to each side of the equation.
64 + -64 + 31b = -19 + -64

Combine like terms: 64 + -64 = 0
0 + 31b = -19 + -64
31b = -19 + -64

Combine like terms: -19 + -64 = -83
31b = -83

Divide each side by '31'.
b = -2.677419355

Simplifying
b = -2.677419355

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