21=5b+2

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Solution for 21=5b+2 equation:


Simplifying
21 = 5b + 2

Reorder the terms:
21 = 2 + 5b

Solving
21 = 2 + 5b

Solving for variable 'b'.

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

Add '-5b' to each side of the equation.
21 + -5b = 2 + 5b + -5b

Combine like terms: 5b + -5b = 0
21 + -5b = 2 + 0
21 + -5b = 2

Add '-21' to each side of the equation.
21 + -21 + -5b = 2 + -21

Combine like terms: 21 + -21 = 0
0 + -5b = 2 + -21
-5b = 2 + -21

Combine like terms: 2 + -21 = -19
-5b = -19

Divide each side by '-5'.
b = 3.8

Simplifying
b = 3.8

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