18=b+15

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Solution for 18=b+15 equation:


Simplifying
18 = b + 15

Reorder the terms:
18 = 15 + b

Solving
18 = 15 + 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.
18 + -1b = 15 + b + -1b

Combine like terms: b + -1b = 0
18 + -1b = 15 + 0
18 + -1b = 15

Add '-18' to each side of the equation.
18 + -18 + -1b = 15 + -18

Combine like terms: 18 + -18 = 0
0 + -1b = 15 + -18
-1b = 15 + -18

Combine like terms: 15 + -18 = -3
-1b = -3

Divide each side by '-1'.
b = 3

Simplifying
b = 3

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