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 = -15
-5b = -15

Divide each side by '-5'.
b = 3

Simplifying
b = 3

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