20=4+4z

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Solution for 20=4+4z equation:


Simplifying
20 = 4 + 4z

Solving
20 = 4 + 4z

Solving for variable 'z'.

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

Add '-4z' to each side of the equation.
20 + -4z = 4 + 4z + -4z

Combine like terms: 4z + -4z = 0
20 + -4z = 4 + 0
20 + -4z = 4

Add '-20' to each side of the equation.
20 + -20 + -4z = 4 + -20

Combine like terms: 20 + -20 = 0
0 + -4z = 4 + -20
-4z = 4 + -20

Combine like terms: 4 + -20 = -16
-4z = -16

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

Simplifying
z = 4

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