31=-4(9b+2)

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Solution for 31=-4(9b+2) equation:


Simplifying
31 = -4(9b + 2)

Reorder the terms:
31 = -4(2 + 9b)
31 = (2 * -4 + 9b * -4)
31 = (-8 + -36b)

Solving
31 = -8 + -36b

Solving for variable 'b'.

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

Add '36b' to each side of the equation.
31 + 36b = -8 + -36b + 36b

Combine like terms: -36b + 36b = 0
31 + 36b = -8 + 0
31 + 36b = -8

Add '-31' to each side of the equation.
31 + -31 + 36b = -8 + -31

Combine like terms: 31 + -31 = 0
0 + 36b = -8 + -31
36b = -8 + -31

Combine like terms: -8 + -31 = -39
36b = -39

Divide each side by '36'.
b = -1.083333333

Simplifying
b = -1.083333333

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