2(z+3)=20

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Solution for 2(z+3)=20 equation: 


Simplifying
2(z + 3) = 20

Reorder the terms:
2(3 + z) = 20
(3 * 2 + z * 2) = 20
(6 + 2z) = 20

Solving
6 + 2z = 20

Solving for variable 'z'.

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

Add '-6' to each side of the equation.
6 + -6 + 2z = 20 + -6

Combine like terms: 6 + -6 = 0
0 + 2z = 20 + -6
2z = 20 + -6

Combine like terms: 20 + -6 = 14
2z = 14

Divide each side by '2'.
z = 7

Simplifying
z = 7

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