-6.5-5z-5.9-3z=-7z

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Solution for -6.5-5z-5.9-3z=-7z equation: 


Simplifying
-6.5 + -5z + -5.9 + -3z = -7z

Reorder the terms:
-6.5 + -5.9 + -5z + -3z = -7z

Combine like terms: -6.5 + -5.9 = -12.4
-12.4 + -5z + -3z = -7z

Combine like terms: -5z + -3z = -8z
-12.4 + -8z = -7z

Solving
-12.4 + -8z = -7z

Solving for variable 'z'.

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

Add '7z' to each side of the equation.
-12.4 + -8z + 7z = -7z + 7z

Combine like terms: -8z + 7z = -1z
-12.4 + -1z = -7z + 7z

Combine like terms: -7z + 7z = 0
-12.4 + -1z = 0

Add '12.4' to each side of the equation.
-12.4 + 12.4 + -1z = 0 + 12.4

Combine like terms: -12.4 + 12.4 = 0.0
0.0 + -1z = 0 + 12.4
-1z = 0 + 12.4

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

Divide each side by '-1'.
z = -12.4

Simplifying
z = -12.4

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