31=10(3b+0.8)

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Solution for 31=10(3b+0.8) equation:


Simplifying
31 = 10(3b + 0.8)

Reorder the terms:
31 = 10(0.8 + 3b)
31 = (0.8 * 10 + 3b * 10)
31 = (8 + 30b)

Solving
31 = 8 + 30b

Solving for variable 'b'.

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

Add '-30b' to each side of the equation.
31 + -30b = 8 + 30b + -30b

Combine like terms: 30b + -30b = 0
31 + -30b = 8 + 0
31 + -30b = 8

Add '-31' to each side of the equation.
31 + -31 + -30b = 8 + -31

Combine like terms: 31 + -31 = 0
0 + -30b = 8 + -31
-30b = 8 + -31

Combine like terms: 8 + -31 = -23
-30b = -23

Divide each side by '-30'.
b = 0.7666666667

Simplifying
b = 0.7666666667

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