15-3z=-4.5

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Solution for 15-3z=-4.5 equation: 


Simplifying
15 + -3z = -4.5

Solving
15 + -3z = -4.5

Solving for variable 'z'.

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

Add '-15' to each side of the equation.
15 + -15 + -3z = -4.5 + -15

Combine like terms: 15 + -15 = 0
0 + -3z = -4.5 + -15
-3z = -4.5 + -15

Combine like terms: -4.5 + -15 = -19.5
-3z = -19.5

Divide each side by '-3'.
z = 6.5

Simplifying
z = 6.5

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