8b-3=2b+21

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Solution for 8b-3=2b+21 equation:


Simplifying
8b + -3 = 2b + 21

Reorder the terms:
-3 + 8b = 2b + 21

Reorder the terms:
-3 + 8b = 21 + 2b

Solving
-3 + 8b = 21 + 2b

Solving for variable 'b'.

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

Add '-2b' to each side of the equation.
-3 + 8b + -2b = 21 + 2b + -2b

Combine like terms: 8b + -2b = 6b
-3 + 6b = 21 + 2b + -2b

Combine like terms: 2b + -2b = 0
-3 + 6b = 21 + 0
-3 + 6b = 21

Add '3' to each side of the equation.
-3 + 3 + 6b = 21 + 3

Combine like terms: -3 + 3 = 0
0 + 6b = 21 + 3
6b = 21 + 3

Combine like terms: 21 + 3 = 24
6b = 24

Divide each side by '6'.
b = 4

Simplifying
b = 4

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