9z+7z+5z-7=

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Solution for 9z+7z+5z-7= equation:


Simplifying
9z + 7z + 5z + -7 = 0

Reorder the terms:
-7 + 9z + 7z + 5z = 0

Combine like terms: 9z + 7z = 16z
-7 + 16z + 5z = 0

Combine like terms: 16z + 5z = 21z
-7 + 21z = 0

Solving
-7 + 21z = 0

Solving for variable 'z'.

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

Add '7' to each side of the equation.
-7 + 7 + 21z = 0 + 7

Combine like terms: -7 + 7 = 0
0 + 21z = 0 + 7
21z = 0 + 7

Combine like terms: 0 + 7 = 7
21z = 7

Divide each side by '21'.
z = 0.3333333333

Simplifying
z = 0.3333333333

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