20=4(z+2)

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Solution for 20=4(z+2) equation:


Simplifying
20 = 4(z + 2)

Reorder the terms:
20 = 4(2 + z)
20 = (2 * 4 + z * 4)
20 = (8 + 4z)

Solving
20 = 8 + 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 = 8 + 4z + -4z

Combine like terms: 4z + -4z = 0
20 + -4z = 8 + 0
20 + -4z = 8

Add '-20' to each side of the equation.
20 + -20 + -4z = 8 + -20

Combine like terms: 20 + -20 = 0
0 + -4z = 8 + -20
-4z = 8 + -20

Combine like terms: 8 + -20 = -12
-4z = -12

Divide each side by '-4'.
z = 3

Simplifying
z = 3

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