8b-28=b-7

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Solution for 8b-28=b-7 equation:


Simplifying
8b + -28 = b + -7

Reorder the terms:
-28 + 8b = b + -7

Reorder the terms:
-28 + 8b = -7 + b

Solving
-28 + 8b = -7 + b

Solving for variable 'b'.

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

Add '-1b' to each side of the equation.
-28 + 8b + -1b = -7 + b + -1b

Combine like terms: 8b + -1b = 7b
-28 + 7b = -7 + b + -1b

Combine like terms: b + -1b = 0
-28 + 7b = -7 + 0
-28 + 7b = -7

Add '28' to each side of the equation.
-28 + 28 + 7b = -7 + 28

Combine like terms: -28 + 28 = 0
0 + 7b = -7 + 28
7b = -7 + 28

Combine like terms: -7 + 28 = 21
7b = 21

Divide each side by '7'.
b = 3

Simplifying
b = 3

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