2(z+4)=20

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


Simplifying
2(z + 4) = 20

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

Solving
8 + 2z = 20

Solving for variable 'z'.

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

Add '-8' to each side of the equation.
8 + -8 + 2z = 20 + -8

Combine like terms: 8 + -8 = 0
0 + 2z = 20 + -8
2z = 20 + -8

Combine like terms: 20 + -8 = 12
2z = 12

Divide each side by '2'.
z = 6

Simplifying
z = 6

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