3w-21=15+2w

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Solution for 3w-21=15+2w equation:


Simplifying
3w + -21 = 15 + 2w

Reorder the terms:
-21 + 3w = 15 + 2w

Solving
-21 + 3w = 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.
-21 + 3w + -2w = 15 + 2w + -2w

Combine like terms: 3w + -2w = 1w
-21 + 1w = 15 + 2w + -2w

Combine like terms: 2w + -2w = 0
-21 + 1w = 15 + 0
-21 + 1w = 15

Add '21' to each side of the equation.
-21 + 21 + 1w = 15 + 21

Combine like terms: -21 + 21 = 0
0 + 1w = 15 + 21
1w = 15 + 21

Combine like terms: 15 + 21 = 36
1w = 36

Divide each side by '1'.
w = 36

Simplifying
w = 36

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