-15=6-3z

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Solution for -15=6-3z equation:


Simplifying
-15 = 6 + -3z

Solving
-15 = 6 + -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.
-15 + 3z = 6 + -3z + 3z

Combine like terms: -3z + 3z = 0
-15 + 3z = 6 + 0
-15 + 3z = 6

Add '15' to each side of the equation.
-15 + 15 + 3z = 6 + 15

Combine like terms: -15 + 15 = 0
0 + 3z = 6 + 15
3z = 6 + 15

Combine like terms: 6 + 15 = 21
3z = 21

Divide each side by '3'.
z = 7

Simplifying
z = 7

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