5w-15=w+21

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Solution for 5w-15=w+21 equation:


Simplifying
5w + -15 = w + 21

Reorder the terms:
-15 + 5w = w + 21

Reorder the terms:
-15 + 5w = 21 + w

Solving
-15 + 5w = 21 + w

Solving for variable 'w'.

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

Add '-1w' to each side of the equation.
-15 + 5w + -1w = 21 + w + -1w

Combine like terms: 5w + -1w = 4w
-15 + 4w = 21 + w + -1w

Combine like terms: w + -1w = 0
-15 + 4w = 21 + 0
-15 + 4w = 21

Add '15' to each side of the equation.
-15 + 15 + 4w = 21 + 15

Combine like terms: -15 + 15 = 0
0 + 4w = 21 + 15
4w = 21 + 15

Combine like terms: 21 + 15 = 36
4w = 36

Divide each side by '4'.
w = 9

Simplifying
w = 9

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