2(z+7)=20

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Solution for 2(z+7)=20 equation: 


Simplifying
2(z + 7) = 20

Reorder the terms:
2(7 + z) = 20
(7 * 2 + z * 2) = 20
(14 + 2z) = 20

Solving
14 + 2z = 20

Solving for variable 'z'.

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

Add '-14' to each side of the equation.
14 + -14 + 2z = 20 + -14

Combine like terms: 14 + -14 = 0
0 + 2z = 20 + -14
2z = 20 + -14

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

Divide each side by '2'.
z = 3

Simplifying
z = 3

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