3b+5=8b-20

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Solution for 3b+5=8b-20 equation:


Simplifying
3b + 5 = 8b + -20

Reorder the terms:
5 + 3b = 8b + -20

Reorder the terms:
5 + 3b = -20 + 8b

Solving
5 + 3b = -20 + 8b

Solving for variable 'b'.

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

Add '-8b' to each side of the equation.
5 + 3b + -8b = -20 + 8b + -8b

Combine like terms: 3b + -8b = -5b
5 + -5b = -20 + 8b + -8b

Combine like terms: 8b + -8b = 0
5 + -5b = -20 + 0
5 + -5b = -20

Add '-5' to each side of the equation.
5 + -5 + -5b = -20 + -5

Combine like terms: 5 + -5 = 0
0 + -5b = -20 + -5
-5b = -20 + -5

Combine like terms: -20 + -5 = -25
-5b = -25

Divide each side by '-5'.
b = 5

Simplifying
b = 5

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