4+z+2+z=20

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


Simplifying
4 + z + 2 + z = 20

Reorder the terms:
4 + 2 + z + z = 20

Combine like terms: 4 + 2 = 6
6 + z + z = 20

Combine like terms: z + z = 2z
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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