b-3+7b=30

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Solution for b-3+7b=30 equation:


Simplifying
b + -3 + 7b = 30

Reorder the terms:
-3 + b + 7b = 30

Combine like terms: b + 7b = 8b
-3 + 8b = 30

Solving
-3 + 8b = 30

Solving for variable 'b'.

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

Add '3' to each side of the equation.
-3 + 3 + 8b = 30 + 3

Combine like terms: -3 + 3 = 0
0 + 8b = 30 + 3
8b = 30 + 3

Combine like terms: 30 + 3 = 33
8b = 33

Divide each side by '8'.
b = 4.125

Simplifying
b = 4.125

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