3w-1=7

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Solution for 3w-1=7 equation: 


Simplifying
3w + -1 = 7

Reorder the terms:
-1 + 3w = 7

Solving
-1 + 3w = 7

Solving for variable 'w'.

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

Add '1' to each side of the equation.
-1 + 1 + 3w = 7 + 1

Combine like terms: -1 + 1 = 0
0 + 3w = 7 + 1
3w = 7 + 1

Combine like terms: 7 + 1 = 8
3w = 8

Divide each side by '3'.
w = 2.666666667

Simplifying
w = 2.666666667

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