(3z-7)+21=50

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Solution for (3z-7)+21=50 equation:


Simplifying
(3z + -7) + 21 = 50

Reorder the terms:
(-7 + 3z) + 21 = 50

Remove parenthesis around (-7 + 3z)
-7 + 3z + 21 = 50

Reorder the terms:
-7 + 21 + 3z = 50

Combine like terms: -7 + 21 = 14
14 + 3z = 50

Solving
14 + 3z = 50

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 + 3z = 50 + -14

Combine like terms: 14 + -14 = 0
0 + 3z = 50 + -14
3z = 50 + -14

Combine like terms: 50 + -14 = 36
3z = 36

Divide each side by '3'.
z = 12

Simplifying
z = 12

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