5+7+6+z=30

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Solution for 5+7+6+z=30 equation:


Simplifying
5 + 7 + 6 + z = 30

Combine like terms: 5 + 7 = 12
12 + 6 + z = 30

Combine like terms: 12 + 6 = 18
18 + z = 30

Solving
18 + z = 30

Solving for variable 'z'.

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

Add '-18' to each side of the equation.
18 + -18 + z = 30 + -18

Combine like terms: 18 + -18 = 0
0 + z = 30 + -18
z = 30 + -18

Combine like terms: 30 + -18 = 12
z = 12

Simplifying
z = 12

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