3(3w-5)=21

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Solution for 3(3w-5)=21 equation: 


Simplifying
3(3w + -5) = 21

Reorder the terms:
3(-5 + 3w) = 21
(-5 * 3 + 3w * 3) = 21
(-15 + 9w) = 21

Solving
-15 + 9w = 21

Solving for variable 'w'.

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

Add '15' to each side of the equation.
-15 + 15 + 9w = 21 + 15

Combine like terms: -15 + 15 = 0
0 + 9w = 21 + 15
9w = 21 + 15

Combine like terms: 21 + 15 = 36
9w = 36

Divide each side by '9'.
w = 4

Simplifying
w = 4

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