-4z+8-9=-28

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Solution for -4z+8-9=-28 equation:


Simplifying
-4z + 8 + -9 = -28

Reorder the terms:
8 + -9 + -4z = -28

Combine like terms: 8 + -9 = -1
-1 + -4z = -28

Solving
-1 + -4z = -28

Solving for variable 'z'.

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

Add '1' to each side of the equation.
-1 + 1 + -4z = -28 + 1

Combine like terms: -1 + 1 = 0
0 + -4z = -28 + 1
-4z = -28 + 1

Combine like terms: -28 + 1 = -27
-4z = -27

Divide each side by '-4'.
z = 6.75

Simplifying
z = 6.75

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