8z-0.4=9z

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Solution for 8z-0.4=9z equation:


Simplifying
8z + -0.4 = 9z

Reorder the terms:
-0.4 + 8z = 9z

Solving
-0.4 + 8z = 9z

Solving for variable 'z'.

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

Add '-9z' to each side of the equation.
-0.4 + 8z + -9z = 9z + -9z

Combine like terms: 8z + -9z = -1z
-0.4 + -1z = 9z + -9z

Combine like terms: 9z + -9z = 0
-0.4 + -1z = 0

Add '0.4' to each side of the equation.
-0.4 + 0.4 + -1z = 0 + 0.4

Combine like terms: -0.4 + 0.4 = 0.0
0.0 + -1z = 0 + 0.4
-1z = 0 + 0.4

Combine like terms: 0 + 0.4 = 0.4
-1z = 0.4

Divide each side by '-1'.
z = -0.4

Simplifying
z = -0.4

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