31=2w+15

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Solution for 31=2w+15 equation: 


Simplifying
31 = 2w + 15

Reorder the terms:
31 = 15 + 2w

Solving
31 = 15 + 2w

Solving for variable 'w'.

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

Add '-2w' to each side of the equation.
31 + -2w = 15 + 2w + -2w

Combine like terms: 2w + -2w = 0
31 + -2w = 15 + 0
31 + -2w = 15

Add '-31' to each side of the equation.
31 + -31 + -2w = 15 + -31

Combine like terms: 31 + -31 = 0
0 + -2w = 15 + -31
-2w = 15 + -31

Combine like terms: 15 + -31 = -16
-2w = -16

Divide each side by '-2'.
w = 8

Simplifying
w = 8

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