20-22=z-4

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Solution for 20-22=z-4 equation:


Simplifying
20 + -22 = z + -4

Combine like terms: 20 + -22 = -2
-2 = z + -4

Reorder the terms:
-2 = -4 + z

Solving
-2 = -4 + z

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.
-2 + -1z = -4 + z + -1z

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

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

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

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

Divide each side by '-1'.
z = 2

Simplifying
z = 2

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