8n-(5n+b)=18

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Solution for 8n-(5n+b)=18 equation:


Simplifying
8n + -1(5n + b) = 18

Reorder the terms:
8n + -1(b + 5n) = 18
8n + (b * -1 + 5n * -1) = 18
8n + (-1b + -5n) = 18

Reorder the terms:
-1b + 8n + -5n = 18

Combine like terms: 8n + -5n = 3n
-1b + 3n = 18

Solving
-1b + 3n = 18

Solving for variable 'b'.

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

Add '-3n' to each side of the equation.
-1b + 3n + -3n = 18 + -3n

Combine like terms: 3n + -3n = 0
-1b + 0 = 18 + -3n
-1b = 18 + -3n

Divide each side by '-1'.
b = -18 + 3n

Simplifying
b = -18 + 3n

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