6.9+5.5=8.3z-7.3z-2.1

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Solution for 6.9+5.5=8.3z-7.3z-2.1 equation: 


Simplifying
6.9 + 5.5 = 8.3z + -7.3z + -2.1

Combine like terms: 6.9 + 5.5 = 12.4
12.4 = 8.3z + -7.3z + -2.1

Reorder the terms:
12.4 = -2.1 + 8.3z + -7.3z

Combine like terms: 8.3z + -7.3z = 1z
12.4 = -2.1 + 1z

Solving
12.4 = -2.1 + 1z

Solving for variable 'z'.

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

Add '-1z' to each side of the equation.
12.4 + -1z = -2.1 + 1z + -1z

Combine like terms: 1z + -1z = 0
12.4 + -1z = -2.1 + 0
12.4 + -1z = -2.1

Add '-12.4' to each side of the equation.
12.4 + -12.4 + -1z = -2.1 + -12.4

Combine like terms: 12.4 + -12.4 = 0.0
0.0 + -1z = -2.1 + -12.4
-1z = -2.1 + -12.4

Combine like terms: -2.1 + -12.4 = -14.5
-1z = -14.5

Divide each side by '-1'.
z = 14.5

Simplifying
z = 14.5

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