21+3w+12y=

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Solution for 21+3w+12y= equation:


Simplifying
21 + 3w + 12y = 0

Solving
21 + 3w + 12y = 0

Solving for variable 'w'.

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

Add '-21' to each side of the equation.
21 + 3w + -21 + 12y = 0 + -21

Reorder the terms:
21 + -21 + 3w + 12y = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 3w + 12y = 0 + -21
3w + 12y = 0 + -21

Combine like terms: 0 + -21 = -21
3w + 12y = -21

Add '-12y' to each side of the equation.
3w + 12y + -12y = -21 + -12y

Combine like terms: 12y + -12y = 0
3w + 0 = -21 + -12y
3w = -21 + -12y

Divide each side by '3'.
w = -7 + -4y

Simplifying
w = -7 + -4y

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