15z-3=42

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Solution for 15z-3=42 equation: 


Simplifying
15z + -3 = 42

Reorder the terms:
-3 + 15z = 42

Solving
-3 + 15z = 42

Solving for variable 'z'.

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

Add '3' to each side of the equation.
-3 + 3 + 15z = 42 + 3

Combine like terms: -3 + 3 = 0
0 + 15z = 42 + 3
15z = 42 + 3

Combine like terms: 42 + 3 = 45
15z = 45

Divide each side by '15'.
z = 3

Simplifying
z = 3

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