-7.8-4z-6.5-2z=-5z-5.5

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Solution for -7.8-4z-6.5-2z=-5z-5.5 equation:


Simplifying
-7.8 + -4z + -6.5 + -2z = -5z + -5.5

Reorder the terms:
-7.8 + -6.5 + -4z + -2z = -5z + -5.5

Combine like terms: -7.8 + -6.5 = -14.3
-14.3 + -4z + -2z = -5z + -5.5

Combine like terms: -4z + -2z = -6z
-14.3 + -6z = -5z + -5.5

Reorder the terms:
-14.3 + -6z = -5.5 + -5z

Solving
-14.3 + -6z = -5.5 + -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.
-14.3 + -6z + 5z = -5.5 + -5z + 5z

Combine like terms: -6z + 5z = -1z
-14.3 + -1z = -5.5 + -5z + 5z

Combine like terms: -5z + 5z = 0
-14.3 + -1z = -5.5 + 0
-14.3 + -1z = -5.5

Add '14.3' to each side of the equation.
-14.3 + 14.3 + -1z = -5.5 + 14.3

Combine like terms: -14.3 + 14.3 = 0.0
0.0 + -1z = -5.5 + 14.3
-1z = -5.5 + 14.3

Combine like terms: -5.5 + 14.3 = 8.8
-1z = 8.8

Divide each side by '-1'.
z = -8.8

Simplifying
z = -8.8

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