3w-(w-4)=28

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Solution for 3w-(w-4)=28 equation:


Simplifying
3w + -1(w + -4) = 28

Reorder the terms:
3w + -1(-4 + w) = 28
3w + (-4 * -1 + w * -1) = 28
3w + (4 + -1w) = 28

Reorder the terms:
4 + 3w + -1w = 28

Combine like terms: 3w + -1w = 2w
4 + 2w = 28

Solving
4 + 2w = 28

Solving for variable 'w'.

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

Add '-4' to each side of the equation.
4 + -4 + 2w = 28 + -4

Combine like terms: 4 + -4 = 0
0 + 2w = 28 + -4
2w = 28 + -4

Combine like terms: 28 + -4 = 24
2w = 24

Divide each side by '2'.
w = 12

Simplifying
w = 12

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