18-5=b

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Solution for 18-5=b equation:


Simplifying
18 + -5 = b

Combine like terms: 18 + -5 = 13
13 = b

Solving
13 = 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.
13 + -1b = b + -1b

Combine like terms: b + -1b = 0
13 + -1b = 0

Add '-13' to each side of the equation.
13 + -13 + -1b = 0 + -13

Combine like terms: 13 + -13 = 0
0 + -1b = 0 + -13
-1b = 0 + -13

Combine like terms: 0 + -13 = -13
-1b = -13

Divide each side by '-1'.
b = 13

Simplifying
b = 13

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