21=49-4(5-1w)

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Solution for 21=49-4(5-1w) equation:


Simplifying
21 = 49 + -4(5 + -1w)
21 = 49 + (5 * -4 + -1w * -4)
21 = 49 + (-20 + 4w)

Combine like terms: 49 + -20 = 29
21 = 29 + 4w

Solving
21 = 29 + 4w

Solving for variable 'w'.

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

Add '-4w' to each side of the equation.
21 + -4w = 29 + 4w + -4w

Combine like terms: 4w + -4w = 0
21 + -4w = 29 + 0
21 + -4w = 29

Add '-21' to each side of the equation.
21 + -21 + -4w = 29 + -21

Combine like terms: 21 + -21 = 0
0 + -4w = 29 + -21
-4w = 29 + -21

Combine like terms: 29 + -21 = 8
-4w = 8

Divide each side by '-4'.
w = -2

Simplifying
w = -2

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