30z-28w=100

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Solution for 30z-28w=100 equation: 


Simplifying
30z + -28w = 100

Reorder the terms:
-28w + 30z = 100

Solving
-28w + 30z = 100

Solving for variable 'w'.

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

Add '-30z' to each side of the equation.
-28w + 30z + -30z = 100 + -30z

Combine like terms: 30z + -30z = 0
-28w + 0 = 100 + -30z
-28w = 100 + -30z

Divide each side by '-28'.
w = -3.571428571 + 1.071428571z

Simplifying
w = -3.571428571 + 1.071428571z

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