42=5z+12

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Solution for 42=5z+12 equation:


Simplifying
42 = 5z + 12

Reorder the terms:
42 = 12 + 5z

Solving
42 = 12 + 5z

Solving for variable 'z'.

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

Add '-5z' to each side of the equation.
42 + -5z = 12 + 5z + -5z

Combine like terms: 5z + -5z = 0
42 + -5z = 12 + 0
42 + -5z = 12

Add '-42' to each side of the equation.
42 + -42 + -5z = 12 + -42

Combine like terms: 42 + -42 = 0
0 + -5z = 12 + -42
-5z = 12 + -42

Combine like terms: 12 + -42 = -30
-5z = -30

Divide each side by '-5'.
z = 6

Simplifying
z = 6

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