.4(w-1)=15

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Solution for .4(w-1)=15 equation:


Simplifying
0.4(w + -1) = 15

Reorder the terms:
0.4(-1 + w) = 15
(-1 * 0.4 + w * 0.4) = 15
(-0.4 + 0.4w) = 15

Solving
-0.4 + 0.4w = 15

Solving for variable 'w'.

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

Add '0.4' to each side of the equation.
-0.4 + 0.4 + 0.4w = 15 + 0.4

Combine like terms: -0.4 + 0.4 = 0.0
0.0 + 0.4w = 15 + 0.4
0.4w = 15 + 0.4

Combine like terms: 15 + 0.4 = 15.4
0.4w = 15.4

Divide each side by '0.4'.
w = 38.5

Simplifying
w = 38.5

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