28=9z-4z

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Solution for 28=9z-4z equation:


Simplifying
28 = 9z + -4z

Combine like terms: 9z + -4z = 5z
28 = 5z

Solving
28 = 5z

Solving for variable 'z'.

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

Add '-5z' to each side of the equation.
28 + -5z = 5z + -5z

Combine like terms: 5z + -5z = 0
28 + -5z = 0

Add '-28' to each side of the equation.
28 + -28 + -5z = 0 + -28

Combine like terms: 28 + -28 = 0
0 + -5z = 0 + -28
-5z = 0 + -28

Combine like terms: 0 + -28 = -28
-5z = -28

Divide each side by '-5'.
z = 5.6

Simplifying
z = 5.6

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