2z-4-a=4

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Solution for 2z-4-a=4 equation:


Simplifying
2z + -4 + -1a = 4

Reorder the terms:
-4 + -1a + 2z = 4

Solving
-4 + -1a + 2z = 4

Solving for variable 'a'.

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

Add '4' to each side of the equation.
-4 + -1a + 4 + 2z = 4 + 4

Reorder the terms:
-4 + 4 + -1a + 2z = 4 + 4

Combine like terms: -4 + 4 = 0
0 + -1a + 2z = 4 + 4
-1a + 2z = 4 + 4

Combine like terms: 4 + 4 = 8
-1a + 2z = 8

Add '-2z' to each side of the equation.
-1a + 2z + -2z = 8 + -2z

Combine like terms: 2z + -2z = 0
-1a + 0 = 8 + -2z
-1a = 8 + -2z

Divide each side by '-1'.
a = -8 + 2z

Simplifying
a = -8 + 2z

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