7z+12=31

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Solution for 7z+12=31 equation: 


Simplifying
7z + 12 = 31

Reorder the terms:
12 + 7z = 31

Solving
12 + 7z = 31

Solving for variable 'z'.

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

Add '-12' to each side of the equation.
12 + -12 + 7z = 31 + -12

Combine like terms: 12 + -12 = 0
0 + 7z = 31 + -12
7z = 31 + -12

Combine like terms: 31 + -12 = 19
7z = 19

Divide each side by '7'.
z = 2.714285714

Simplifying
z = 2.714285714

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