w+w+78=478

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Solution for w+w+78=478 equation:


Simplifying
w + w + 78 = 478

Reorder the terms:
78 + w + w = 478

Combine like terms: w + w = 2w
78 + 2w = 478

Solving
78 + 2w = 478

Solving for variable 'w'.

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

Add '-78' to each side of the equation.
78 + -78 + 2w = 478 + -78

Combine like terms: 78 + -78 = 0
0 + 2w = 478 + -78
2w = 478 + -78

Combine like terms: 478 + -78 = 400
2w = 400

Divide each side by '2'.
w = 200

Simplifying
w = 200

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