30-15z=4z-65

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Solution for 30-15z=4z-65 equation:


Simplifying
30 + -15z = 4z + -65

Reorder the terms:
30 + -15z = -65 + 4z

Solving
30 + -15z = -65 + 4z

Solving for variable 'z'.

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

Add '-4z' to each side of the equation.
30 + -15z + -4z = -65 + 4z + -4z

Combine like terms: -15z + -4z = -19z
30 + -19z = -65 + 4z + -4z

Combine like terms: 4z + -4z = 0
30 + -19z = -65 + 0
30 + -19z = -65

Add '-30' to each side of the equation.
30 + -30 + -19z = -65 + -30

Combine like terms: 30 + -30 = 0
0 + -19z = -65 + -30
-19z = -65 + -30

Combine like terms: -65 + -30 = -95
-19z = -95

Divide each side by '-19'.
z = 5

Simplifying
z = 5

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