57=3z-15

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Solution for 57=3z-15 equation:


Simplifying
57 = 3z + -15

Reorder the terms:
57 = -15 + 3z

Solving
57 = -15 + 3z

Solving for variable 'z'.

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

Add '-3z' to each side of the equation.
57 + -3z = -15 + 3z + -3z

Combine like terms: 3z + -3z = 0
57 + -3z = -15 + 0
57 + -3z = -15

Add '-57' to each side of the equation.
57 + -57 + -3z = -15 + -57

Combine like terms: 57 + -57 = 0
0 + -3z = -15 + -57
-3z = -15 + -57

Combine like terms: -15 + -57 = -72
-3z = -72

Divide each side by '-3'.
z = 24

Simplifying
z = 24

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